Source: libarchive Version: 3.8.5-1 Severity: important Tags: security upstream Forwarded: https://github.com/libarchive/libarchive/pull/2898 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libarchive. CVE-2026-4424[0]: | A flaw was found in libarchive. This heap out-of-bounds read | vulnerability exists in the RAR archive processing logic due to | improper validation of the LZSS sliding window size after | transitions between compression methods. A remote attacker can | exploit this by providing a specially crafted RAR archive, leading | to the disclosure of sensitive heap memory information without | requiring authentication or user interaction. 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-2026-4424 https://www.cve.org/CVERecord?id=CVE-2026-4424 [1] https://github.com/libarchive/libarchive/pull/2898 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
