#VU86871 Heap-based buffer overflow in libde265 - CVE-2022-43244

Vulnerability identifier: #VU86871

Vulnerability risk: Low

CVSSv4.0: 1.2 [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-2022-43244

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libde265
Mobile applications / Libraries for mobile applications

Vendor: struktur AG

Description

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_fallback() 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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libde265: 0.1 - 1.0.9

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External links
https://github.com/strukturag/libde265/issues/342
https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
https://www.debian.org/security/2023/dsa-5346

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.