Webmproject: >> Libwebp >> 1.0.2 Security Vulnerabilities
CVE-2023-4863
Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)
Known exploited
CVSS Score
8.8
EPSS Score
0.94
Published
2023-09-12
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.
CVSS Score
5.3
EPSS Score
0.003
Published
2023-06-20