CVE-2022-32317: mplayerhq mplayer Use After Free

Vulnerability summary

CVE-2022-32317 is a medium (CVSS 5.5) Use After Free vulnerability in mplayerhq mplayer. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 14-07-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

The MPlayer Project v1.5 was discovered to contain a heap use-after-free resulting in a double free in the preinit function at libvo/vo_v4l2.c. This vulnerability can lead to a Denial of Service (DoS) via a crafted file. The device=strdup statement is not executed on every call. Note: This has been disputed by third parties as invalid and not reproduceable.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.