CVE-2023-1999
HIGH
Published Jun 20, 20233y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published Jun 20, 2023 3y ago
Last Modified Jun 17, 2026 2w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-415
CWE-416 Use After Free Memory Safety
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| webmproject | libwebp | * | ≥0.4.2 – <1.3.1 |
References 2
- chromium.googlesource.com https://chromium.googlesource.com/webm/libwebp
- security.gentoo.org https://security.gentoo.org/glsa/202309-05
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.