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archlinuxArchLinuxASA-202101-35
HistoryJan 20, 2021 - 12:00 a.m.

[ASA-202101-35] vlc: arbitrary code execution

2021-01-2000:00:00
security.archlinux.org
85
vlc media player
arbitrary code execution
buffer overflow
.mkv file
cve-2020-26664
videolan
heap-based

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%

Arch Linux Security Advisory ASA-202101-35

Severity: Medium
Date : 2021-01-20
CVE-ID : CVE-2020-26664
Package : vlc
Type : arbitrary code execution
Remote : No
Link : https://security.archlinux.org/AVG-1423

Summary

The package vlc before version 3.0.12-1 is vulnerable to arbitrary code
execution.

Resolution

Upgrade to 3.0.12-1.

pacman -Syu “vlc>=3.0.12-1”

The problem has been fixed upstream in version 3.0.12.

Workaround

None.

Description

A vulnerability in EbmlTypeDispatcher::send in VideoLAN VLC media
player 3.0.11 allows attackers to trigger a heap-based buffer overflow
via a crafted .mkv file. It is fixed in version 3.0.12.

Impact

A crafted .mkv file can crash or possibly execute arbitrary code.

References

https://gist.githubusercontent.com/henices/db11664dd45b9f322f8514d182aef5ea/raw/d56940c8bf211992bf4f3309a85bb2b69383e511/CVE-2020-26664.txt
https://code.videolan.org/videolan/vlc-3.0/-/commit/ec1f55ee9ace5cc675395a1bc9700d99679e7e8c
https://security.archlinux.org/CVE-2020-26664

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanyvlc< 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%