CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

A vulnerability classified as critical was found in FFmpeg up to 0.8.10 (Multimedia Processing Software). This vulnerability affects an unknown code block of the file nsvdec.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

nsvdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (out-of-bounds read and write) via a crafted NSV file that triggers "use of uninitialized streams."

The issue has been introduced in 06/23/2011. The weakness was released 08/20/2012 as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. This vulnerability was named CVE-2011-3940 since 10/01/2011. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 424 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 59094 (Debian DSA-2471-1 : ffmpeg - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175239 (Debian Security Update for FFmpeg (DSA-2471)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org.

The vulnerability is also documented in the vulnerability database at Tenable (59094). Entries connected to this vulnerability are available at 5073, 5074, 5075 and 61721.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 0.7.1
• 0.7.2
• 0.7.6
• 0.7.7
• 0.7.8
• 0.7.9
• 0.7.11
• 0.8.5
• 0.8.6
• 0.8.7
• 0.8.8
• 0.8.10

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 59094
Nessus Name: Debian DSA-2471-1 : ffmpeg - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892471
OpenVAS Name: Debian Security Advisory DSA 2471-1 (ffmpeg - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 5c011706bc752d34bc6ada31d7df2ca0c9af7c6b

Timelineinfo

06/23/2011 🔍
10/01/2011 +100 days 🔍
05/14/2012 +226 days 🔍
07/05/2012 +52 days 🔍
07/26/2012 +21 days 🔍
08/20/2012 +25 days 🔍
08/20/2012 +0 days 🔍
03/23/2015 +945 days 🔍
12/08/2021 +2452 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: DSA-2471
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-3940 (🔍)
OVAL: 🔍

Vulnerability Center: 35739 - Ffmpeg Before 0.7.12 and 0.8.11 Remote Code Execution via a Crafted NSV File, Medium
Secunia: 49089 - Debian update for ffmpeg, Highly Critical

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/08/2021 01:26
Changes: 03/23/2015 16:50 (61), 04/15/2017 16:01 (13), 12/08/2021 01:19 (4), 12/08/2021 01:26 (2)
Complete: 🔍

Discussion

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