Description
Fraunhofer HHI VVdeC through 3.2.1 contains a NULL pointer dereference vulnerability in InterPrediction::xPredInterBlk that allows attackers to crash the decoder by switching SPS to enable reference wrap-around. Attackers can supply a crafted VVC bitstream activating a new SPS with sps_ref_wraparound_enabled_flag set, causing reads from missing PIC_RECON_WRAP buffers and denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| fraunhoferhhi | vvdec | ≤ 3.2.1 | — |
References
- https://github.com/fraunhoferhhi/vvdec/issues/420 issue-tracking
- https://github.com/fraunhoferhhi/vvdec/commit/fb73aca37b48f89814f57edbc8072a37d47bbe06 patch
- https://github.com/fraunhoferhhi/vvdec/blob/v3.2.1/source/Lib/CommonLib/InterPrediction.cpp#L790-L796 technical-description
- https://github.com/fraunhoferhhi/vvdec product
- VulnCheck Advisory: Fraunhofer HHI VVdeC through 3.2.1 NULL Pointer Dereference via InterPrediction::xPredInterBlk third-party-advisory