libav up to 0.7.1 cavsdec.c decode_residual_block numeric error

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-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in libav. Affected by this issue is the function decode_residual_block of the file cavsdec.c. Such manipulation leads to numeric error. This vulnerability is documented as CVE-2011-3362. There is not any exploit available.

Detailsinfo

A vulnerability was found in libav (Multimedia Player Software). It has been rated as critical. Affected by this issue is the function decode_residual_block of the file cavsdec.c. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Integer signedness error in the decode_residual_block function in cavsdec.c in libavcodec in FFmpeg before 0.7.3 and 0.8.x before 0.8.2, and libav through 0.7.1, allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted Chinese AVS video (aka CAVS) file.

The weakness was released 10/02/2011 by Emmanouel Kellinis (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2011-3362. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 56727 (Debian DSA-2336-1 : 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.

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 (69134), Tenable (56727), SecurityFocus (BID 49115†) and Vulnerability Center (SBV-33465†). Entries connected to this vulnerability are available at VDB-58799 and VDB-58798. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Multimedia Player Software

Name

• libav

Version

• 0.3
• 0.3.1
• 0.3.2
• 0.3.3
• 0.3.4
• 0.4.0
• 0.4.1
• 0.4.2
• 0.4.3
• 0.4.4
• 0.4.5
• 0.4.6
• 0.4.7
• 0.4.8
• 0.4.9
• 0.5
• 0.5.4
• 0.6
• 0.6.1
• 0.6.2
• 0.7.1

License

• open-source

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

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: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: 56727
Nessus Name: Debian DSA-2336-1 : ffmpeg - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70554
OpenVAS Name: Debian Security Advisory DSA 2336-1 (ffmpeg)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 91d5da9321c52e8197fb14046ebb335f3e6ff4a0

Timelineinfo

08/10/2011 🔍
08/10/2011 +0 days 🔍
08/30/2011 +19 days 🔍
10/02/2011 +33 days 🔍
10/02/2011 +0 days 🔍
10/06/2011 +4 days 🔍
11/08/2011 +33 days 🔍
03/23/2015 +1231 days 🔍
11/20/2021 +2434 days 🔍

Sourcesinfo

Advisory: DSA-2336
Researcher: Emmanouel Kellinis
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-3362 (🔍)
GCVE (CVE): GCVE-0-2011-3362
GCVE (VulDB): GCVE-100-58796

OVAL: 🔍

X-Force: 69134
SecurityFocus: 49115 - FFmpeg libavcodec CAVS File Remote Buffer Overflow Vulnerability
Secunia: 45532
Vulnerability Center: 33465 - FFmpeg before 0.7.3 and 0.8.x before 0.8.2 and Libav 0.7.1 Remote DoS or Arbitrary Code Execution, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/20/2021 23:43
Changes: 03/23/2015 16:50 (60), 04/03/2017 17:46 (10), 11/20/2021 23:33 (7), 11/20/2021 23:43 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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