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Date: Thu, 22 Oct 2026 20:41:58 +0200
From: Salvatore Bonaccorso <carnil@debian.org>
To: submit@bugs.debian.org
Subject: libimager-perl: CVE-2026-112202
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Source: libimager-perl
Version: 1.037+dfsg-2
X-Debbugs-CC: team@security.debian.org
Severity: important
Tags: security upstream

Hi,

The following vulnerability was published for libimager-perl.

CVE-2026-112202[0]:
| Imager::File::GIF versions before 1.006 for Perl allow out-of-bounds
| reads when consolidating GIF images.  With `gif_consolidate => 1`,
| palette indices from the image are used without checking the colour
| table's bounds. The i_readgif_low routine reads beyond the heap
| allocation and copies the bytes into output pixels. The default GIF
| reader is not affected.  The same code ships bundled in the Imager
| distribution.  An attacker supplying a crafted GIF can disclose
| adjacent heap memory through the decoded output and may crash the
| process.


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-2026-112202
    https://www.cve.org/CVERecord?id=CVE-2026-112202
[1] https://lists.security.metacpan.org/cve-announce/msg/44514169/
[2] https://github.com/tonycoz/imager/security/advisories/GHSA-v4hp-5h6w-9897
[3] https://github.com/tonycoz/imager/commit/dec96f12b3d8a7fd94e86264953a5e4919dd6036

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
]