Source: libarchive Version: 3.8.5-1 Severity: important Tags: security upstream Forwarded: https://github.com/libarchive/libarchive/pull/2897 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libarchive. CVE-2026-4426[0]: | A flaw was found in libarchive. An Undefined Behavior vulnerability | exists in the zisofs decompression logic, caused by improper | validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge | extensions. A remote attacker can exploit this by supplying a | specially crafted ISO file. This can lead to incorrect memory | allocation and potential application crashes, resulting in a denial- | of-service (DoS) condition. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-4426 https://www.cve.org/CVERecord?id=CVE-2026-4426 [1] https://github.com/libarchive/libarchive/pull/2897 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
