Golioth Firmware SDK version 0.19.1 prior to 0.22.0, fixed in commit 0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx->path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default).
Metrics
Affected Vendors & Products
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References
History
Thu, 26 Feb 2026 19:15:00 +0000
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Thu, 26 Feb 2026 18:00:00 +0000
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| Description | Golioth Firmware SDK version 0.19.1 prior to 0.22.0, fixed in commit 0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx->path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default). | |
| Title | Golioth Firmware SDK < 0.22.0 Blockwise Transfer Path Out-of-Bounds Read | |
| Weaknesses | CWE-170 | |
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cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-02-26T17:32:30.795Z
Updated: 2026-02-26T18:39:37.350Z
Reserved: 2026-01-15T18:42:20.938Z
Link: CVE-2026-23749
Vulnrichment
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NVD
Status : Received
Published: 2026-02-26T18:23:06.763
Modified: 2026-02-26T19:32:38.727
Link: CVE-2026-23749
Redhat
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