CVE-2026-120452
mediumlibgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt hea…
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.
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005bcd_decompress.c#L... disclosure@vulncheck.com
- https://github.com/gphoto/libgphoto2/commit/30bf7ace6d47cfe1232ea73bde2aceb95aba4bfb disclosure@vulncheck.com
- https://github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442 disclosure@vulncheck.com
- https://github.com/gphoto/libgphoto2/issues/1326 disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/libgphoto2-jl2005c-init-alloc-table-buffer-overflow disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/libgphoto2-through-2.5.34-heap-out-of-bounds-read-wri... disclosure@vulncheck.com