HighFix available
giflib — security advisory
A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.
- Products
- giflib
- Affected versions
- Not specified
- Fixed versions
- 5.2.2-r0
- CVEs
- CVE-2021-40633
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:06 UTC · Revision 1
Source evidence
A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.
osv:ALPINE-CVE-2021-40633
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
giflib
Fixed versions: 5.2.2-r0
Complete source record
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"modified": "2026-10-23T17:17:56.211377341Z",
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