Bug 2446725 (CVE-2026-3949) - CVE-2026-3949 libheif: libheif: Out-of-bounds read via local argument manipulation
Summary: CVE-2026-3949 libheif: libheif: Out-of-bounds read via local argument manipul...
Keywords:
Status: NEW
Alias: CVE-2026-3949
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2446923 2446924
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-11 19:02 UTC by OSIDB Bzimport
Modified: 2026-03-12 10:07 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-03-11 19:02:34 UTC 
A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.
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