CVE-2018-13305

2018-07-0500:00:00

ubuntu.com

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

EPSS

0.003

Percentile

65.4%

JSON

In FFmpeg 4.0.1, due to a missing check for negative values of the mquant
variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may
trigger an out-of-array access while converting a crafted AVI file to
MPEG4, leading to an information disclosure or a denial of service.

Notes

Author	Note
mdeslaur	marking chromium-browser as ignored, since we do full-version updates, and rely on upstream’s bundled ffmpeg version

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchgst-libav1.0< anyUNKNOWN
ubuntu20.04noarchgst-libav1.0< anyUNKNOWN
ubuntu22.04noarchgst-libav1.0< anyUNKNOWN
ubuntu24.04noarchgst-libav1.0< anyUNKNOWN
ubuntu16.04noarchgst-libav1.0< anyUNKNOWN
ubuntu18.04noarchmythtv< anyUNKNOWN
ubuntu20.04noarchmythtv< anyUNKNOWN
ubuntu22.04noarchmythtv< anyUNKNOWN
ubuntu24.04noarchmythtv< anyUNKNOWN
ubuntu16.04noarchmythtv< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	20.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	22.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	24.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	16.04	noarch	gst-libav1.0	< any	UNKNOWN
ubuntu	18.04	noarch	mythtv	< any	UNKNOWN
ubuntu	20.04	noarch	mythtv	< any	UNKNOWN
ubuntu	22.04	noarch	mythtv	< any	UNKNOWN
ubuntu	24.04	noarch	mythtv	< any	UNKNOWN
ubuntu	16.04	noarch	mythtv	< any	UNKNOWN