| Package | Affected versions | Patched versions |
|---|---|---|
| libwebp | ≥ 0.4.2, < 1.3.1 | 1.3.1 |
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.
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