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

Vulnerability identifier: #VU86873

CSH Severity: Low

CVSS v4: 5.1 [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]

CVE-ID: CVE-2022-43250

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

libde265
Ubuntu
libde265-0 (Ubuntu package)

Install updates from vendor's website.

libde265 - update to 1.0.10
libde265-0 (Ubuntu package) - addressed in versions Ubuntu Pro, 1.0.4-1ubuntu0.3, 1.0.8-1ubuntu0.2

• 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

• Multiple vulnerabilities in libde265
• Ubuntu update for libde265