SB2022080564 - openEuler update for ffmpeg

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2020-35964)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the track_header() function in libavformat/vividas.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

2) Unchecked Return Value (CVE-ID: CVE-2021-38114)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to libavcodec/dnxhddec.c in FFmpeg does not check the return value of the init_vlc function. A local user can trick the victim into opening a specially crafted file to trigger resource exhaustion and perform a denial of service (DoS) attack.

3) Buffer overflow (CVE-ID: CVE-2013-0868)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

libavcodec/huffyuvdec.c in FFmpeg before 1.1.2 allows remote attackers to have an unspecified impact via crafted Huffyuv data, related to an out-of-bounds write and (1) unchecked return codes from the init_vlc function and (2) "len==0 cases."

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1808