FFmpeg up to 0.8.10 mjpegbdec.c memory corruption

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.
7.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in FFmpeg up to 0.8.10. This impacts an unknown function of the file mjpegbdec.c. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2011-3947. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FFmpeg up to 0.8.10 (Multimedia Processing Software). This issue affects some unknown processing of the file mjpegbdec.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in mjpegbdec.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 (crash) and possibly execute arbitrary code via a crafted MJPEG-B file.

The issue has been introduced in 06/23/2011. The weakness was disclosed 08/20/2012 by Gynvael Coldwind (j00ru) (Website). The advisory is shared at ubuntu.com. The identification of this vulnerability is CVE-2011-3947 since 10/01/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, 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)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (78275), Tenable (59094), SecurityFocus (BID 51720†), Secunia (SA49089†) and Vulnerability Center (SBV-40294†). The entries VDB-5073, VDB-5074, VDB-5075 and VDB-61721 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: b57d262412204e54a7ef8fa1b23ff4dcede622e5

Timelineinfo

06/23/2011 🔍
10/01/2011 +100 days 🔍
01/30/2012 +121 days 🔍
01/30/2012 +0 days 🔍
08/20/2012 +203 days 🔍
08/20/2012 +0 days 🔍
07/03/2013 +317 days 🔍
03/23/2015 +628 days 🔍
12/08/2021 +2452 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: DSA-2471
Researcher: Gynvael Coldwind (j00ru)
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-3947 (🔍)
GCVE (CVE): GCVE-0-2011-3947
GCVE (VulDB): GCVE-100-61697

OVAL: 🔍

X-Force: 78275
SecurityFocus: 51720 - FFmpeg Multiple Remote Vulnerabilities
Secunia: 49089
Vulnerability Center: 40294 - FFmpeg <0.8.11 and Libav <0.8.1 Remote Denial of Service and Code Execution via a Maliciously Crafted MJPEG-B File, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/08/2021 01:40
Changes: 03/23/2015 16:50 (65), 05/04/2017 10:42 (10), 12/08/2021 01:33 (5), 12/08/2021 01:40 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!