VDB-94639 · CVE-2016-6881 · BID 93163

FFmpeg up to 3.1.2 SWF File libavformat/swfdec.c zlib_refill resource management

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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in FFmpeg up to 3.1.2. The affected element is the function zlib_refill of the file libavformat/swfdec.c of the component SWF File Handler. This manipulation causes resource management. The identification of this vulnerability is CVE-2016-6881. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in FFmpeg up to 3.1.2 (Multimedia Processing Software) and classified as problematic. Affected by this vulnerability is the function zlib_refill of the file libavformat/swfdec.c of the component SWF File Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.

The weakness was shared 12/23/2016 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2016-6881. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.1.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93163†). The entries VDB-94643, VDB-94642, VDB-94641 and VDB-94638 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

Website

Product: https://ffmpeg.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FFmpeg 3.1.3

Timelineinfo

08/19/2016 🔍
12/23/2016 +126 days 🔍
12/23/2016 +0 days 🔍
12/23/2016 +0 days 🔍
10/12/2022 +2119 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: openwall.com
Status: Not defined

CVE: CVE-2016-6881 (🔍)
GCVE (CVE): GCVE-0-2016-6881
GCVE (VulDB): GCVE-100-94639
SecurityFocus: 93163

See also: 🔍

Entryinfo

Created: 12/23/2016 10:13
Updated: 10/12/2022 14:23
Changes: 12/23/2016 10:13 (40), 06/08/2017 23:47 (11), 10/12/2022 14:18 (2), 10/12/2022 14:23 (11)
Complete: 🔍
Cache ID: 216:400:103