FFmpeg up to 3.4.1 AVI File libavcodec/utvideodec.c decode_frame out-of-bounds

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.
5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg up to 3.4.1. It has been classified as problematic. This issue affects the function decode_frame of the file libavcodec/utvideodec.c of the component AVI File Handler. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2018-6621. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in FFmpeg up to 3.4.1 (Multimedia Processing Software). It has been declared as problematic. Affected by this vulnerability is the function decode_frame of the file libavcodec/utvideodec.c of the component AVI File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.4.1 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.

The bug was discovered 02/05/2018. The weakness was released 02/05/2018 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.ffmpeg.org. This vulnerability is known as CVE-2018-6621 since 02/04/2018. 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.

The vulnerability scanner Nessus provides a plugin with the ID 106890 (openSUSE Security Update : ffmpeg (openSUSE-2018-172)), 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)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.ffmpeg.org. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106890) and SecurityFocus (BID 102950†). Entries connected to this vulnerability are available at VDB-102891, VDB-102892, VDB-106023 and VDB-106024. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 106890
Nessus Name: openSUSE Security Update : ffmpeg (openSUSE-2018-172)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: git.ffmpeg.org

Timelineinfo

02/04/2018 🔍
02/04/2018 +0 days 🔍
02/04/2018 +0 days 🔍
02/05/2018 +1 days 🔍
02/05/2018 +0 days 🔍
02/05/2018 +0 days 🔍
02/19/2018 +14 days 🔍
02/20/2018 +1 days 🔍
02/03/2023 +1809 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 118e1b0b3370dd1c0da442901b486689efd1654b
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-6621 (🔍)
GCVE (CVE): GCVE-0-2018-6621
GCVE (VulDB): GCVE-100-112831

OVAL: 🔍

SecurityFocus: 102950 - FFmpeg 'libavcodec/utvideodec.c' Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 02/05/2018 15:02
Updated: 02/03/2023 15:19
Changes: 02/05/2018 15:02 (74), 01/01/2020 16:30 (9), 02/03/2023 15:13 (4), 02/03/2023 15:19 (1)
Complete: 🔍
Cache ID: 216:A89:103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!