Description
There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Chromium | libwebp | >= 0.4.2, < 1.3.1; >= 0.4.2, < 1.3.0-8-ga486d800 |
References
Timeline
- Published
- Jun 20, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified