libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used). https://wrv.github.io/h26forge.pdf https://news.ycombinator.com/item?id=35356201 https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11
Created ffmpeg tracking bugs for this issue: Affects: fedora-all [bug 2182840]
Created chromium tracking bugs for this issue: Affects: epel-all [bug 2182841] Created ffmpegthumbs tracking bugs for this issue: Affects: fedora-all [bug 2182844] Created nv-codec-headers tracking bugs for this issue: Affects: epel-all [bug 2182842] Affects: fedora-all [bug 2182845] Created python-mne tracking bugs for this issue: Affects: fedora-all [bug 2182846] Created qt5-qtwebengine tracking bugs for this issue: Affects: epel-all [bug 2182843] Affects: fedora-all [bug 2182847] Created qt6-qtwebengine tracking bugs for this issue: Affects: fedora-all [bug 2182848]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.