7.5
HIGH
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 :

Nov. 27, 2018, 11:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2017-16803 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.

ID Vendor Product Action
1 Libav libav
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

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 [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.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.74 }} -0.24%

score

0.78300

percentile

CVSS30 - Vulnerability Scoring System
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