Division by zero in MPlayer - CVE-2022-38850

Vulnerability identifier: #VU76082

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-2022-38850

CWE-ID: CWE-369

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 division by zero error within the config() function in llibmpcodecs/vf_scale.c. A remote attacker can trick the victim to open a specially crafted file, trigger a divide by zero error and crash the application.

MPlayer
Gentoo Linux
Ubuntu
mencoder (Ubuntu package)
mplayer (Ubuntu package)
media-video/mplayer

Install updates from vendor's website.

mencoder (Ubuntu package) - addressed in versions Ubuntu Pro, 2:1.3.0-7ubuntu0.2, 2:1.3.0-8+deb10u1build0.20.04.1, 2:1.4+ds1-3ubuntu0.1, 2:1.4+ds1-3ubuntu1.1
mplayer (Ubuntu package) - addressed in versions Ubuntu Pro, 2:1.3.0-7ubuntu0.2, 2:1.3.0-8+deb10u1build0.20.04.1, 2:1.4+ds1-3ubuntu0.1, 2:1.4+ds1-3ubuntu1.1
media-video/mplayer - update to 1.5

• https://trac.mplayerhq.hu/ticket/2399
• https://lists.debian.org/debian-lts-announce/2022/12/msg00042.html

• Multiple vulnerabilities in MPlayer
• Ubuntu update for mplayer
• Gentoo update for MPlayer