Description
L-SMASH through 2.14.5 contains an infinite loop vulnerability in vc1_importer_probe() in importer/vc1_imp.c that allows attackers to hang applications via crafted input files. Attackers can supply a file consisting only of zero bytes, which lsmash_read_file() probes automatically, causing indefinite CPU consumption and denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| l-smash | l-smash | ≤ 2.14.5 | — |
References
- https://github.com/l-smash/l-smash/pull/58 patch issue-tracking
- https://github.com/l-smash/l-smash/blob/v2.14.5/importer/vc1_imp.c#L462-L488 technical-description
- https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free third-party-advisory
- VulnCheck Advisory: L-SMASH through 2.14.5 Infinite Loop in VC-1 Importer Probe third-party-advisory