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{"bugzilla": {"description": "libjpeg-turbo: Null pointer dereference in jcopy_sample_rows() function", "id": "2122387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2122387"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A crafted input file could cause a null pointer dereference in jcopy_sample_rows() when processed by libjpeg-turbo.", "A vulnerability was found in libjpeg-turbo where a segmentation fault occurs due to a NULL pointer passing to jcopy_sample_rows(). You may see this error statement: \"Corrupt JPEG data: premature end of data segment\". When processed by a libjpeg-turbo, a crafted input file could cause a crash, leading to a denial of service."], "name": "CVE-2020-35538", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libjpeg-turbo", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libjpeg-turbo", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libjpeg-turbo", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "libjpeg-turbo", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-07-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-35538\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-35538"], "statement": "This vulnerability is considered low severity rather than moderate because it primarily results in a denial of service (DoS) through a crash, without posing a direct risk of code execution or information disclosure. The issue arises due to a NULL pointer dereference when processing a malformed JPEG file, which leads to a segmentation fault but does not introduce memory corruption or arbitrary code execution risks. Additionally, most applications using libjpeg-turbo process images in a non-privileged context, meaning a crash does not compromise system security beyond affecting availability. Since the exploitation requires user interaction (i.e., opening a crafted JPEG), and modern systems can handle such crashes gracefully (e.g., automatic process restart mechanisms), the overall impact remains low.", "threat_severity": "Low"}