Vulnerability in gPhoto libgphoto2

[ Description ]Official description

libgphoto2 through 2.5.34 contains stack-based and heap-based buffer overflow vulnerabilities in jl2005c_init() that allow malicious USB devices to corrupt memory by supplying an unbounded allocation table entry count. Attackers can connect a spoofed Jeilin JL2005B/C/D camera reporting 1022 or more entries to overwrite the saved return address and heap data, potentially achieving code execution.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005c.c
• github.com/gphoto/libgphoto2/commit/6a3393dd996502457ab965432cf0b2035278825e
• github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442
• github.com/gphoto/libgphoto2/issues/1326
• hackmd.io/@haindpwn/libgphoto2-jl2005c-init-alloc-table-buffer-overflow
• www.vulncheck.com/advisories/libgphoto2-through-2.5.34-buffer-overflow-via-jl2005c-came…