Source: jpeg-xl Version: 0.11.1-6 Severity: important Tags: security upstream Forwarded: https://github.com/libjxl/libjxl/issues/4549 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for jpeg-xl. CVE-2026-1837[0]: | A specially-crafted file can cause libjxl's decoder to write pixel | data to uninitialized unallocated memory. Soon after that data from | another uninitialized unallocated region is copied to pixel data. | This can be done by requesting color transformation of grayscale | images to another grayscale color space. Buffers allocated for | 1-float-per-pixel are used as if they are allocated for 3-float-per- | pixel. That happens only if LCMS2 is used as CMS engine. There is | another CMS engine available (selected by build flags). 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-2026-1837 https://www.cve.org/CVERecord?id=CVE-2026-1837 [1] https://github.com/libjxl/libjxl/issues/4549 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
