Critical severity9.8OSV Advisory· Published Feb 2, 2018· Updated Jun 17, 2026
CVE-2018-6548
CVE-2018-6548
Description
A use-after-free issue was discovered in libwebm through 2018-02-02. If a Vp9HeaderParser was initialized once before, its property frame_ would not be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its frame_ could be freed while the corresponding pointer would not be updated, leading to a dangling pointer. This is related to the function OutputCluster in webm_info.cc.
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Affected products
2libwebm-1.0.0.10, libwebm-1.0.0.11, libwebm-1.0.0.12, …+ 1 more
- (no CPE)range: libwebm-1.0.0.10, libwebm-1.0.0.11, libwebm-1.0.0.12, …
- (no CPE)
Patches
Vulnerability mechanics
References
2- github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.mdnvdExploitThird Party Advisory
- bugs.chromium.org/p/webm/issues/detailnvdPermissions Required
News mentions
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