Bug 2565320 (CVE-2026-120452) - CVE-2026-120452 libgphoto2: libgphoto2: Denial of service via oversized thumbnail processing
Summary: CVE-2026-120452 libgphoto2: libgphoto2: Denial of service via oversized thumb...
Keywords:
Status: NEW
Alias: CVE-2026-120452
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2565648
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-02 17:43 UTC by OSIDB Bzimport
Modified: 2026-11-03 09:17 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-11-02 17:43:25 UTC 
libgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt heap memory via oversized thumbnail processing. Attackers can supply small allocation-table values and a thumbnail header byte so in-place byte-swapping exceeds the buffer by about 30 KB, leaking heap contents in preview images.
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