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

Summaryinfo

A vulnerability, which was classified as problematic, was found in FFmpeg 3.3.3. The affected element is the function rl2_read_header of the file libavformat/rl2.c. Executing a manipulation can lead to resource management. The identification of this vulnerability is CVE-2017-14056. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in FFmpeg 3.3.3 (Multimedia Processing Software) and classified as problematic. This vulnerability affects the function rl2_read_header of the file libavformat/rl2.c. 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. CVE summarizes:

In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.

The bug was discovered 08/25/2017. The weakness was shared 08/31/2017 by Security Team (GitHub Repository). The advisory is shared for download at github.com. This vulnerability was named CVE-2017-14056 since 08/31/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103289 (openSUSE Security Update : ffmpeg / ffmpeg2 (openSUSE-2017-1067)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176709 (Debian Security Update for libav (DLA 1630-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103289) and SecurityFocus (BID 100628†). The entries VDB-102891, VDB-102892, VDB-106022 and VDB-106023 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 3.3.3

License

• open-source

Website

• Product: https://ffmpeg.org/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

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: Resource management
CWE: CWE-399 / CWE-404
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: 103289
Nessus Name: openSUSE Security Update : ffmpeg / ffmpeg2 (openSUSE-2017-1067)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for ffmpeg, openSUSE-SU-2017:2502-1 (ffmpeg,)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

08/25/2017 🔍
08/31/2017 +6 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
09/15/2017 +15 days 🔍
09/18/2017 +3 days 🔍
12/27/2022 +1926 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de
Researcher: Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14056 (🔍)
GCVE (CVE): GCVE-0-2017-14056
GCVE (VulDB): GCVE-100-106024

OVAL: 🔍

SecurityFocus: 100628 - FFmpeg CVE-2017-14056 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 08/31/2017 22:49
Updated: 12/27/2022 12:47
Changes: 08/31/2017 22:49 (70), 11/12/2019 13:02 (13), 12/27/2022 12:40 (5), 12/27/2022 12:47 (1)
Complete: 🔍
Cache ID: 216:B37:103

Discussion

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