CVE-2017-16803
Libav Smacker Remote Denial of Service
Description
In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.
INFO
Published Date :
Nov. 13, 2017, 5:29 p.m.
Last Modified :
April 20, 2025, 1:37 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Upgrade the libav packages to the latest version.
- For Debian users, upgrade to version 6:11.12-1~deb8u1 or later.
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-2017-16803.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/101882 | Third Party Advisory VDB Entry |
| https://bugzilla.libav.org/show_bug.cgi?id=1098 | Issue Tracking |
| https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f | Issue Tracking |
| https://security.gentoo.org/glsa/201811-19 | |
| https://www.debian.org/security/2018/dsa-4119 | |
| http://www.securityfocus.com/bid/101882 | Third Party Advisory VDB Entry |
| https://bugzilla.libav.org/show_bug.cgi?id=1098 | Issue Tracking |
| https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f | Issue Tracking |
| https://security.gentoo.org/glsa/201811-19 | |
| https://www.debian.org/security/2018/dsa-4119 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-16803 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-2017-16803
weaknesses.
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-2017-16803 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-16803 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/101882 Added Reference https://bugzilla.libav.org/show_bug.cgi?id=1098 Added Reference https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Added Reference https://security.gentoo.org/glsa/201811-19 Added Reference https://www.debian.org/security/2018/dsa-4119 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 27, 2018
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201811-19 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 20, 2018
Action Type Old Value New Value Added Reference https://www.debian.org/security/2018/dsa-4119 [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 28, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.libav.org/show_bug.cgi?id=1098 No Types Assigned https://bugzilla.libav.org/show_bug.cgi?id=1098 Issue Tracking Changed Reference Type http://www.securityfocus.com/bid/101882 No Types Assigned http://www.securityfocus.com/bid/101882 Third Party Advisory, VDB Entry Changed Reference Type https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f No Types Assigned https://github.com/libav/libav/commit/cd4663dc80323ba64989d0c103d51ad3ee0e9c2f Issue Tracking Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:* versions up to (including) 11.11 *cpe:2.3:a:libav:libav:12.0:*:*:*:*:*:*:* *cpe:2.3:a:libav:libav:12.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 19, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/101882 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 14, 2017
Action Type Old Value New Value Changed Description In libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream. In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.68 }} -0.57%
score
0.69119
percentile