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 marked as problematic has been reported in FFmpeg 3.3.3. This issue affects the function nsv_parse_NSVf_header of the file libavformat/nsvdec.c. The manipulation as part of Header leads to resource management. This vulnerability is uniquely identified as CVE-2017-14171. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in FFmpeg 3.3.3 (Multimedia Processing Software) and classified as problematic. This issue affects the function nsv_parse_NSVf_header of the file libavformat/nsvdec.c. The manipulation as part of a Header leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

In libavformat/nsvdec.c in FFmpeg 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.

The bug was discovered 08/30/2017. The weakness was disclosed 09/07/2017 by Security Team (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2017-14171 since 09/07/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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.

The vulnerability was handled as a non-public zero-day exploit for at least 8 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 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103289) and SecurityFocus (BID 100706†). The entries VDB-102891, VDB-102892, VDB-106022 and VDB-106023 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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

08/30/2017 🔍
09/07/2017 +8 days 🔍
09/07/2017 +0 days 🔍
09/07/2017 +0 days 🔍
09/07/2017 +0 days 🔍
09/08/2017 +1 days 🔍
09/15/2017 +7 days 🔍
09/18/2017 +3 days 🔍
12/28/2022 +1927 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: c24bcb553650b91e9eff15ef6e54ca73de2453b7
Researcher: Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14171 (🔍)
GCVE (CVE): GCVE-0-2017-14171
GCVE (VulDB): GCVE-100-106187

OVAL: 🔍

SecurityFocus: 100706 - FFmpeg CVE-2017-14171 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/08/2017 09:11
Updated: 12/28/2022 08:09
Changes: 09/08/2017 09:11 (71), 11/13/2019 13:38 (13), 12/28/2022 08:04 (5), 12/28/2022 08:09 (1)
Complete: 🔍
Cache ID: 216:E05:103

Discussion

Do you need the next level of professionalism?

Upgrade your account now!