Vulnerabilities > CVE-2023-1999 - Use After Free vulnerability in Webmproject Libwebp

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

webmproject

CWE-416

NVD

Published: 2023-06-20

Updated: 2023-09-17

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Webmproject Webmproject Libwebp 0.4.2 Webmproject Libwebp 0.4.3 Webmproject Libwebp 0.4.4 Webmproject Libwebp 0.5.0 Webmproject Libwebp 0.5.1 Webmproject Libwebp 0.5.2 Webmproject Libwebp 0.6.0 Webmproject Libwebp 0.6.1 Webmproject Libwebp 1.0.0 Webmproject Libwebp 1.0.1 Webmproject Libwebp 1.0.2 Webmproject Libwebp 1.0.3 Webmproject Libwebp 1.1.0 Webmproject Libwebp 1.2.0 Webmproject Libwebp 1.2.1 Webmproject Libwebp 1.2.2 Webmproject Libwebp 1.2.3 Webmproject Libwebp 1.2.4 Webmproject Libwebp 1.3.0	26

Common Weakness Enumeration (CWE)

CWE-416 - Use After Free

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References