{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-02-07T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-06-03T17:06:14.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"}, {"name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2018/02/07/2"}, {"name": "USN-3565-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3565-1/"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://openwall.com/lists/oss-security/2018/02/10/2"}, {"name": "1040461", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1040461"}, {"name": "DSA-4110", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2018/dsa-4110"}, {"name": "44571", "tags": ["exploit", "x_refsource_EXPLOIT-DB"], "url": "https://www.exploit-db.com/exploits/44571/"}, {"name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1"}, {"tags": ["x_refsource_MISC"], "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"}, {"name": "103049", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/103049"}, {"name": "45671", "tags": ["exploit", "x_refsource_EXPLOIT-DB"], "url": "https://www.exploit-db.com/exploits/45671/"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-6789", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://exim.org/static/doc/security/CVE-2018-6789.txt", "refsource": "CONFIRM", "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"}, {"name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2018/02/07/2"}, {"name": "USN-3565-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/3565-1/"}, {"name": "http://openwall.com/lists/oss-security/2018/02/10/2", "refsource": "CONFIRM", "url": "http://openwall.com/lists/oss-security/2018/02/10/2"}, {"name": "1040461", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1040461"}, {"name": "DSA-4110", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2018/dsa-4110"}, {"name": "44571", "refsource": "EXPLOIT-DB", "url": "https://www.exploit-db.com/exploits/44571/"}, {"name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html"}, {"name": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1", "refsource": "CONFIRM", "url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1"}, {"name": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/", "refsource": "MISC", "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"}, {"name": "103049", "refsource": "BID", "url": "http://www.securityfocus.com/bid/103049"}, {"name": "45671", "refsource": "EXPLOIT-DB", "url": "https://www.exploit-db.com/exploits/45671/"}, {"name": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T06:10:11.343Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"}, {"name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2018/02/07/2"}, {"name": "USN-3565-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/3565-1/"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://openwall.com/lists/oss-security/2018/02/10/2"}, {"name": "1040461", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1040461"}, {"name": "DSA-4110", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2018/dsa-4110"}, {"name": "44571", "tags": ["exploit", "x_refsource_EXPLOIT-DB", "x_transferred"], "url": "https://www.exploit-db.com/exploits/44571/"}, {"name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"}, {"name": "103049", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/103049"}, {"name": "45671", "tags": ["exploit", "x_refsource_EXPLOIT-DB", "x_transferred"], "url": "https://www.exploit-db.com/exploits/45671/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"}]}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2018-6789", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-07T14:03:40.827397Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "timeline": [{"time": "2021-11-03T00:00:00+00:00", "lang": "en", "value": "CVE-2018-6789 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:45:56.260Z"}}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-6789", "datePublished": "2018-02-08T23:00:00.000Z", "dateReserved": "2018-02-06T00:00:00.000Z", "dateUpdated": "2025-10-21T23:45:56.260Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://exim.org/static/doc/security/CVE-2018-6789.txt", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2018/02/07/2", "name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"]}, {"url": "https://usn.ubuntu.com/3565-1/", "name": "USN-3565-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"]}, {"url": "http://openwall.com/lists/oss-security/2018/02/10/2", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "http://www.securitytracker.com/id/1040461", "name": "1040461", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"]}, {"url": "https://www.debian.org/security/2018/dsa-4110", "name": "DSA-4110", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"]}, {"url": "https://www.exploit-db.com/exploits/44571/", "name": "44571", "tags": ["exploit", "x_refsource_EXPLOIT-DB", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html", "name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"]}, {"url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "http://www.securityfocus.com/bid/103049", "name": "103049", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"]}, {"url": "https://www.exploit-db.com/exploits/45671/", "name": "45671", "tags": ["exploit", "x_refsource_EXPLOIT-DB", "x_transferred"]}, {"url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T06:10:11.343Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2018-6789", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-07T14:03:40.827397Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789"}}}], "timeline": [{"lang": "en", "time": "2021-11-03T00:00:00+00:00", "value": "CVE-2018-6789 added to CISA KEV"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-07T14:03:34.340Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-02-07T00:00:00.000Z", "references": [{"url": "https://exim.org/static/doc/security/CVE-2018-6789.txt", "tags": ["x_refsource_CONFIRM"]}, {"url": "http://www.openwall.com/lists/oss-security/2018/02/07/2", "name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "tags": ["mailing-list", "x_refsource_MLIST"]}, {"url": "https://usn.ubuntu.com/3565-1/", "name": "USN-3565-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"]}, {"url": "http://openwall.com/lists/oss-security/2018/02/10/2", "tags": ["x_refsource_CONFIRM"]}, {"url": "http://www.securitytracker.com/id/1040461", "name": "1040461", "tags": ["vdb-entry", "x_refsource_SECTRACK"]}, {"url": "https://www.debian.org/security/2018/dsa-4110", "name": "DSA-4110", "tags": ["vendor-advisory", "x_refsource_DEBIAN"]}, {"url": "https://www.exploit-db.com/exploits/44571/", "name": "44571", "tags": ["exploit", "x_refsource_EXPLOIT-DB"]}, {"url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html", "name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "tags": ["mailing-list", "x_refsource_MLIST"]}, {"url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/", "tags": ["x_refsource_MISC"]}, {"url": "http://www.securityfocus.com/bid/103049", "name": "103049", "tags": ["vdb-entry", "x_refsource_BID"]}, {"url": "https://www.exploit-db.com/exploits/45671/", "name": "45671", "tags": ["exploit", "x_refsource_EXPLOIT-DB"]}, {"url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2021-06-03T17:06:14.000Z"}, "x_legacyV4Record": {"affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "n/a"}]}, "product_name": "n/a"}]}, "vendor_name": "n/a"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://exim.org/static/doc/security/CVE-2018-6789.txt", "name": "https://exim.org/static/doc/security/CVE-2018-6789.txt", "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2018/02/07/2", "name": "[oss-security] 20180207 CVE-2018-6789 Exim 4.90 and earlier: buffer overflow", "refsource": "MLIST"}, {"url": "https://usn.ubuntu.com/3565-1/", "name": "USN-3565-1", "refsource": "UBUNTU"}, {"url": "http://openwall.com/lists/oss-security/2018/02/10/2", "name": "http://openwall.com/lists/oss-security/2018/02/10/2", "refsource": "CONFIRM"}, {"url": "http://www.securitytracker.com/id/1040461", "name": "1040461", "refsource": "SECTRACK"}, {"url": "https://www.debian.org/security/2018/dsa-4110", "name": "DSA-4110", "refsource": "DEBIAN"}, {"url": "https://www.exploit-db.com/exploits/44571/", "name": "44571", "refsource": "EXPLOIT-DB"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html", "name": "[debian-lts-announce] 20180210 [SECURITY] [DLA 1274-1] exim4 security update", "refsource": "MLIST"}, {"url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1", "name": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1", "refsource": "CONFIRM"}, {"url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/", "name": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/", "refsource": "MISC"}, {"url": "http://www.securityfocus.com/bid/103049", "name": "103049", "refsource": "BID"}, {"url": "https://www.exploit-db.com/exploits/45671/", "name": "45671", "refsource": "EXPLOIT-DB"}, {"url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html", "name": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-6789", "STATE": "PUBLIC", "ASSIGNER": "cve@mitre.org"}}}}, "cveMetadata": {"cveId": "CVE-2018-6789", "state": "PUBLISHED", "dateUpdated": "2025-10-21T23:45:56.260Z", "dateReserved": "2018-02-06T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2018-02-08T23:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.1"}

{"cisaActionDue": "2022-05-03", "cisaExploitAdd": "2021-11-03", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Exim Buffer Overflow Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*", "matchCriteriaId": "EC35DD1C-8421-443D-9EBC-73F1C7B7306E", "versionEndExcluding": "4.90.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "matchCriteriaId": "7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."}, {"lang": "es", "value": "Se ha descubierto un problema en la funci\u00f3n base64d en el escuchador SMTP en Exim, en versiones anteriores a la 4.90.1. Al enviar un mensaje manipulado, podr\u00eda ocurrir un desbordamiento de b\u00fafer. Esto puede emplearse para ejecutar c\u00f3digo de forma remota."}], "id": "CVE-2018-6789", "lastModified": "2025-10-22T00:16:25.497", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2018-02-08T23:29:01.170", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://openwall.com/lists/oss-security/2018/02/10/2"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2018/02/07/2"}, {"source": "cve@mitre.org", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103049"}, {"source": "cve@mitre.org", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040461"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3565-1/"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://www.debian.org/security/2018/dsa-4110"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44571/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/45671/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://openwall.com/lists/oss-security/2018/02/10/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2018/02/07/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103049"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040461"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://exim.org/static/doc/security/CVE-2018-6789.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3565-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://www.debian.org/security/2018/dsa-4110"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44571/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/45671/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-120"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "exim: buffer overflow in b64decode() function, possibly leading to remote code execution", "id": "1543268", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1543268"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely."], "name": "CVE-2018-6789", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "exim", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2018-02-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-6789\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-6789\nhttps://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/\nhttps://exim.org/static/doc/security/CVE-2018-6789.txt\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "statement": "This issue affects the versions of Exim as shipped in Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is already in the Extended Life Phase of its life cycle and Exim is not on the list of components supported via Red Hat Enterprise Linux 5 Extended Life-cycle Support (ELS) add-on, therefore there's currently no plan to address this issue in Red Hat Enterprise Linux 5. For more information about Red Hat Enterprise Linux 5 life cycle and ELS add-on scope of support, see:\nhttps://access.redhat.com/support/policy/updates/errata/#Extended_Life_Cycle_Phase\nhttps://access.redhat.com/articles/2901071\nThe Exim mail server is not shipped in Red Hat Enterprise Linux 6 and 7.", "threat_severity": "Critical"}