Vulnerability in VideoLAN libbluray

[ Why it matters ]Priority signals

• Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

VideoLAN libbluray through 1.5.1 contains an out-of-bounds read vulnerability in clpi_access_point() that allows attackers to crash applications by supplying a ClipInfo file with an empty EP-map fine table. Attackers can place a crafted .clpi file in BDMV/CLIPINF with num_ep_fine set to zero and an unclamped ref_ep_fine_id, triggering reads during seeking for denial of service.

[ 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

• code.videolan.org/videolan/libbluray/-/blob/1.5.1/src/libbluray/bdnav/clpi_parse.c
• hackmd.io/@haindpwn/libbluray-clpi-ep-map-oob-read
• www.vulncheck.com/advisories/videolan-libbluray-through-1.5.1-out-of-bounds-read-via-cl…