Heap-based buffer overflow in libde265 - CVE-2022-43250

Vulnerability identifier: #VU86873

CSH Severity: Low

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2022-43250

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
libde265

Software vendor:
struktur AG

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the put_qpel_0_0_fallback_16() function in fallback-motion.cc. A remote attacker can pass specially crafted file to the application, trigger a heap-based buffer overflow and perform a denial of service attack.

Install updates from vendor's website.

• https://github.com/strukturag/libde265/issues/346
• https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
• https://www.debian.org/security/2023/dsa-5346