CVE-2023-1999
Published: 20 June 2023
Summary
CVE-2023-1999 is a medium-severity Use After Free (CWE-416) vulnerability in Webmproject Libwebp. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 42.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-24179
Vulnerability details
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…
more
memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.