CVE-2023-1999 (published 2023-06-20T11:28:52.547Z)
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. 

Affected products: Vendor: Chromium
Product: libwebp
Versions: 0.4.2, 0.4.2