CVE-2016-20099: medium-severity vulnerability in l-smash
L-SMASH through 2.14.5 Infinite Loop in VC-1 Importer Probe
Published
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.8epss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
l-smash · l-smashpublic PoCs found — 1
cve_referencehackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-freeunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — l-smash
In the same product, most dangerous first.
References
https://github.com/l-smash/l-smash/blob/v2.14.5/importer/vc1_imp.c#L462-L488https://github.com/l-smash/l-smash/pull/58https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-freehttps://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-freehttps://www.vulncheck.com/advisories/l-smash-through-2.14.5-infinite-loop-in-vc-1-importer-probe