Source: libheif Version: 1.21.2-4 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libheif. CVE-2026-49271[0]: | libheif is a HEIF and AVIF file format decoder and encoder. Prior to | version 1.22.1, the uncompressed HEIF decoder validates explicit | icef compressed-unit offsets using unit_offset + unit_size. Because | the addition can wrap, a crafted HEIF file can pass the range check | and then construct a vector from iterators outside the compressed | item buffer, producing an out-of-bounds heap read and crash. Version | 1.22.1 patches the issue. 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-2026-49271 https://www.cve.org/CVERecord?id=CVE-2026-49271 [1] https://github.com/strukturag/libheif/security/advisories/GHSA-r7qj-cg5r-r6vf Please adjust the affected versions in the BTS as needed. Regards, Salvatore
