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gentooGentoo FoundationGLSA-202101-37
HistoryJan 29, 2021 - 12:00 a.m.

VLC: Buffer overflow

2021-01-2900:00:00
Gentoo Foundation
security.gentoo.org
63
vlc media player
buffer overflow
mkv file
arbitrary code
denial of service
upgrade

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

60.0%

Background

VLC is a cross-platform media player and streaming server.

Description

VLC was found to have a buffer overflow when handling crafted MKV files.

Impact

A remote attacker could entice a user to open a specially crafted MKV file using VLC possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All VLC users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-video/vlc-3.0.12.1"
OSVersionArchitecturePackageVersionFilename
Gentooanyallmedia-video/vlc< 3.0.12.1UNKNOWN

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

60.0%