Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed. Imager mishandled large EXIF IFD entry count values, treating them as negative numbers. This could lead to an attempt to allocate a block nearly the size of the address space, which fails and kills the process. An attacker could craft an image with EXIF data that terminates a worker process.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/tonycoz/imager/commit/06f01a5d0fd591259aeba589370d6888384a6b6d.patch Patch
- http://www.openwall.com/lists/oss-security/2026/07/08/6 Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · tonycozNVD modified 2026-10-25 20:10
Affected (CPE criteria) 1
cpe:2.3:a:tonycoz:imager:*:*:*:*:*:perl:*:*
References 3
- https://github.com/tonycoz/imager/commit/06f01a5d0fd591259aeba589370d6888384a6b6d.patch Patch
- https://metacpan.org/release/TONYC/Imager-1.033/changes Release Notes
- http://www.openwall.com/lists/oss-security/2026/07/08/6 Mailing List, Patch, Third Party Advisory