CVE-2023-1999
MEDIUMlibwebp - Use After Free
Title source: llmDescription
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.
Exploits (1)
nomisec
WORKING POC
by Pazhanivelmani · poc
https://github.com/Pazhanivelmani/webp_Android10_r33_CVE-2023-1999
Scores
CVSS v3
5.3
EPSS
0.0038
EPSS Percentile
58.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Classification
CWE
CWE-415
CWE-416
Status
published
Affected Products (1)
webmproject/libwebp
< 1.3.1
Timeline
Published
Jun 20, 2023
Tracked Since
Feb 18, 2026