CVE-2023-29581

yasm 1.3.0.55.g101bc has a segmentation violation in the function delete_Token at modules/preprocs/nasm/nasm-pp.c. NOTE: although a libyasm application could become unavailable if this were exploited, the vendor's position is that there is no security relevance because there is either supposed to be input validation before data reaches libyasm, or a sandbox in which the application runs.

• https://bugzilla.redhat.com/show_bug.cgi?id=2186333
• https://github.com/yasm/yasm/blob/master/SECURITY.md
• https://github.com/yasm/yasm/issues/216Exploit, Issue Tracking, Third Party Advisory
• https://github.com/z1r00/fuzz_vuln/blob/main/yasm/segv/delete_Token/readme.mdExploit, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2186333
• https://github.com/yasm/yasm/blob/master/SECURITY.md
• https://github.com/yasm/yasm/issues/216Exploit, Issue Tracking, Third Party Advisory
• https://github.com/z1r00/fuzz_vuln/blob/main/yasm/segv/delete_Token/readme.mdExploit, Third Party Advisory

Published

Apr 12, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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