EUVD-2026-30535
GHSA-8r2w-8p2v-h4g4
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Lifecycle Timeline
4DescriptionNVD
Imager::File::GIF versions through 1.002 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files.
Imager::File::GIF's i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF's global screen width 'SWidth' and reuses it across every image in the file.
The page-match branch validates Image.Width + Image.Left > SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.
AnalysisAI
Heap buffer overflow in Imager::File::GIF (Perl image processing library) versions through 1.002 allows local attackers to corrupt memory via specially crafted multi-frame GIF files. The vulnerability stems from missing boundary validation in the skip-image code path, which writes image data beyond allocated buffer boundaries when processing malformed GIF frames. …
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External POC / Exploit Code
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