Description
Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon::createSubPicRefBufs because decompressPicture clears m_subPicExtTasks without waiting for pending tasks. Attackers can supply a crafted multi-subpicture VVC bitstream to decoders using two or more threads, causing heap memory corruption or a decoder crash.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| fraunhoferhhi | vvdec | < 3.2.1 | 3.2.1 |
References
- https://github.com/fraunhoferhhi/vvdec/issues/403 issue-tracking
- https://github.com/fraunhoferhhi/vvdec/issues/392 issue-tracking
- https://github.com/fraunhoferhhi/vvdec/commit/8a0def8ba6050412d33e69a6f1e66e287b039083 patch
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L405-L420 technical-description
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.0/source/Lib/DecoderLib/DecLibRecon.cpp#L538-L542 technical-description
- https://github.com/fraunhoferhhi/vvdec product
- VulnCheck Advisory: Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufs third-party-advisory