Is CVE-2023-1999 actively exploited?

CVE-2023-1999 has no public evidence of in-the-wild exploitation as of 2025-02-13.

What is the CVSS score for CVE-2023-1999?

CVE-2023-1999 has a CVSS score of 5.3 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2023-1999?

Patch guidance is available from webmproject security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-1999.

Which products are affected by CVE-2023-1999?

1 product: webmproject libwebp.

CVE-2023-1999 - remediation guidance & executive summary

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 Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-416 · Use After Free CWE-415 CWE-416 · Use After Free

Metadata

Primary Vendor: WEBMPROJECT
Published: 6/20/2023
Last Modified: 2/13/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2023-1999

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary