CVE-2019-9718
FFmpeg Matroska Denial of Service Vulnerability
Description
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.
INFO
Published Date :
March 12, 2019, 9:29 a.m.
Last Modified :
Oct. 7, 2022, 2:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2019-9718
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-9718.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/107382 | Broken Link |
| https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982 | Patch Third Party Advisory |
| https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21 | Patch Third Party Advisory |
| https://seclists.org/bugtraq/2019/May/60 | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/3967-1/ | Third Party Advisory |
| https://www.debian.org/security/2019/dsa-4449 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-9718 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-9718 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/107382 Third Party Advisory, VDB Entry http://www.securityfocus.com/bid/107382 Broken Link Changed Reference Type https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21 No Types Assigned https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21 Patch, Third Party Advisory Changed Reference Type https://seclists.org/bugtraq/2019/May/60 No Types Assigned https://seclists.org/bugtraq/2019/May/60 Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3967-1/ No Types Assigned https://usn.ubuntu.com/3967-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2019/dsa-4449 No Types Assigned https://www.debian.org/security/2019/dsa-4449 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:* OR *cpe:2.3:a:ffmpeg:ffmpeg:3.2:*:*:*:*:*:*:* *cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 04, 2021
Action Type Old Value New Value Changed Description In FFmpeg 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. 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. Added Reference https://github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21 [No Types Assigned] -
CVE Modified by [email protected]
May. 23, 2019
Action Type Old Value New Value Added Reference https://www.debian.org/security/2019/dsa-4449 [No Types Assigned] -
CVE Modified by [email protected]
May. 23, 2019
Action Type Old Value New Value Added Reference https://seclists.org/bugtraq/2019/May/60 [No Types Assigned] -
CVE Modified by [email protected]
May. 06, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3967-1/ [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 15, 2019
Action Type Old Value New Value Changed Reference Type http://www.securityfocus.com/bid/107382 No Types Assigned http://www.securityfocus.com/bid/107382 Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Mar. 15, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/107382 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 12, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982 No Types Assigned https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982 Patch, Third Party Advisory Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-9718 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-9718
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.41 }} -0.04%
score
0.73871
percentile