CVE-2019-9718

In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982	Patch Third Party Advisory
http://www.securityfocus.com/bid/107382	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3967-1/
https://seclists.org/bugtraq/2019/May/60
https://www.debian.org/security/2019/dsa-4449
https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21

Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*

Information

Published : 2019-03-12 09:29

Updated : 2021-01-04 19:15

NVD link : CVE-2019-9718

Mitre link : CVE-2019-9718

JSON object : View

Products Affected

ffmpeg

ffmpeg

CWE

CWE-125

Out-of-bounds Read

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