critical9.8
CVE-2018-6548
A use-after-free issue was discovered in libwebm through 2018-02-02.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Webmproject | Libwebm | through 1.0.0.27 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugs.chromium.org/p/webm/issues/detail?id=1493
- https://github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.md
- https://bugs.chromium.org/p/webm/issues/detail?id=1493
- https://github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.md