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.
5.1	$0-$5k	0.00

A vulnerability was found in FFmpeg up to 2.8.1 (Multimedia Processing Software). It has been rated as problematic. Affected by this issue is the function decode_uncompressed of the file libavcodec/faxcompr.c of the component CCITT FAX Data Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

The decode_uncompressed function in libavcodec/faxcompr.c in FFmpeg before 2.8.2 does not validate uncompressed runs, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted CCITT FAX data.

The weakness was released 11/17/2015 as confirmed git commit (GIT Repository). The advisory is available at git.videolan.org. This vulnerability is handled as CVE-2015-8218 since 11/16/2015. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 87178 (FreeBSD : ffmpeg -- multiple vulnerabilities (b0da85af-21a3-4c15-a137-fe9e4bc86002)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168244 (OpenSuSE Security Update for ffmpeg (openSUSE-SU-2015:2120-1)).

Upgrading to version 2.8.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (87178). Entries connected to this vulnerability are available at 79224, 79225, 79227 and 79341.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.8.0
• 2.8.1

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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Input validation
CWE: CWE-20
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: 87178
Nessus Name: FreeBSD : ffmpeg -- multiple vulnerabilities (b0da85af-21a3-4c15-a137-fe9e4bc86002)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: FFmpeg 2.8.2
Patch: d4a731b84a08f0f3839eaaaf82e97d8d9c67da46

Timelineinfo

11/16/2015 🔍
11/16/2015 +0 days 🔍
11/16/2015 +0 days 🔍
11/16/2015 +0 days 🔍
11/17/2015 +1 days 🔍
11/17/2015 +0 days 🔍
12/02/2015 +15 days 🔍
12/03/2015 +1 days 🔍
12/06/2015 +3 days 🔍
06/27/2022 +2395 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: git.videolan.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8218 (🔍)
Vulnerability Center: 54802 - FFmpeg before 2.8.2 Remote DoS and Unspecified Other Impact via Crafted CCITT FAX Data, Medium
SecurityFocus: 77640 - FFmpeg Multiple Out of Bounds Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 11/17/2015 09:19
Updated: 06/27/2022 14:20
Changes: 11/17/2015 09:19 (65), 05/11/2018 12:55 (11), 06/27/2022 14:20 (3)
Complete: 🔍

Discussion

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