CVE-2016-20099
L-SMASH through 2.14.5 Infinite Loop in VC-1 Importer Probe
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-835 |
| Vendor | l-smash |
| Product | l-smash |
| Published | Oct 14, 2026 |
| Last Updated | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
l-smash / l-smash
0 ≤ 2.14.5
References
github.com: https://github.com/l-smash/l-smash/pull/58 github.com: https://github.com/l-smash/l-smash/blob/v2.14.5/importer/vc1_imp.c#L462-L488 hackmd.io: https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free vulncheck.com: https://www.vulncheck.com/advisories/l-smash-through-2.14.5-infinite-loop-in-vc-1-importer-probe hackmd.io: https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-free
Credits
canbal HaiND from the Post and Telecommunication Institute of Technology