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archlinuxArchLinuxASA-202103-7
HistoryMar 13, 2021 - 12:00 a.m.

[ASA-202103-7] ffmpeg: arbitrary code execution

2021-03-1300:00:00
security.archlinux.org
178
ffmpeg
vulnerability
version 4.3.2
arbitrary code execution
media file
out-of-bounds write
extradata packing
cve-2020-35964
arch linux

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.003

Percentile

68.2%

Arch Linux Security Advisory ASA-202103-7

Severity: Medium
Date : 2021-03-13
CVE-ID : CVE-2020-35964
Package : ffmpeg
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-1649

Summary

The package ffmpeg before version 2:4.3.2-1 is vulnerable to arbitrary
code execution.

Resolution

Upgrade to 2:4.3.2-1.

pacman -Syu “ffmpeg>=2:4.3.2-1”

The problem has been fixed upstream in version 4.3.2.

Workaround

None.

Description

track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-
bounds write because of incorrect extradata packing. The issue is fixed
in FFmpeg version 4.3.2.

Impact

An attacker might be able to execute arbitrary code via a crafted media
file.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26622
https://github.com/FFmpeg/FFmpeg/commit/4f0bdff292391cdb96b79b08c56533029166bdc8
https://security.archlinux.org/CVE-2020-35964

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanyffmpeg< 2:4.3.2-1UNKNOWN

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.003

Percentile

68.2%