Bug 2242138 (CVE-2023-43907) - CVE-2023-43907 optipng: global buffer overflow via the 'buffer' variable at gifread.c.
Summary: CVE-2023-43907 optipng: global buffer overflow via the 'buffer' variable at g...
Keywords:
Status: NEW
Alias: CVE-2023-43907
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2242460 2242461
Blocks: 2242137
TreeView+ depends on / blocked
 
Reported: 2023-10-04 15:33 UTC by Patrick Del Bello
Modified: 2023-11-06 07:00 UTC (History)
0 users

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A vulnerability has been identified in OptiPNG related to its handling of GIF file processing. The issue arises from a global buffer overflow occurring in the 'buffer' variable within the gifread.c component. This vulnerability can potentially be exploited by malicious actors to crash the OptiPNG program by manipulating specially crafted GIF files during processing.
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Description Patrick Del Bello 2023-10-04 15:33:09 UTC 
OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

http://optipng.sourceforge.net/
https://github.com/Frank-Z7/z-vulnerabilitys/blob/main/optipng-global-buffer-overflow1/optipng-global-buffer-overflow1.md
https://sourceforge.net/projects/optipng/files/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz/download?use_mirror=udomain&download=
Comment 2 Sandipan Roy 2023-10-06 09:53:32 UTC 
Created optipng tracking bugs for this issue:

Affects: epel-all [bug 2242460]
Affects: fedora-all [bug 2242461]
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