libav 11.8 mpegvideo_parser.c integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in libav 11.8. This vulnerability affects unknown code of the file libavcodec/mpegvideo_parser.c. Executing a manipulation can lead to integer overflow. This vulnerability appears as CVE-2016-9821. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in libav 11.8 (Multimedia Player Software). This vulnerability affects an unknown part of the file libavcodec/mpegvideo_parser.c. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. CVE summarizes:

Integer overflow in libavcodec/mpegvideo_parser.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.

The bug was discovered 12/01/2016. The weakness was presented 03/01/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2016-9821 since 12/04/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 49 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 96635 (Debian DLA-791-1 : libav security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96635) and SecurityFocus (BID 94732†). See VDB-97406, VDB-97407, VDB-97409 and VDB-97410 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 96635
Nessus Name: Debian DLA-791-1 : libav security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703833
OpenVAS Name: Debian Security Advisory DSA 3833-1 (libav - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
12/01/2016 +0 days 🔍
12/04/2016 +3 days 🔍
01/19/2017 +46 days 🔍
01/20/2017 +1 days 🔍
03/01/2017 +40 days 🔍
03/01/2017 +0 days 🔍
03/02/2017 +1 days 🔍
09/03/2020 +1281 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined

CVE: CVE-2016-9821 (🔍)
GCVE (CVE): GCVE-0-2016-9821
GCVE (VulDB): GCVE-100-97408

OVAL: 🔍

SecurityFocus: 94732 - Libav Multiple Denial of Service Vulnerabilities
OSVDB: - CVE-2016-9821 - libav - Integer Overflow Issue

See also: 🔍

Entryinfo

Created: 03/02/2017 09:56
Updated: 09/03/2020 08:58
Changes: 03/02/2017 09:56 (71), 09/03/2020 08:58 (8)
Complete: 🔍
Cache ID: 216:C2D:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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