FFmpeg up to 3.1.3 AVI File libavformat/avidec.c read_gab2_sub null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg up to 3.1.3. It has been rated as problematic. This vulnerability affects the function read_gab2_sub of the file libavformat/avidec.c of the component AVI File Handler. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2016-7905. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in FFmpeg up to 3.1.3 (Multimedia Processing Software). This affects the function read_gab2_sub of the file libavformat/avidec.c of the component AVI File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

The read_gab2_sub function in libavformat/avidec.c in FFmpeg before 3.1.4 allows remote attackers to cause a denial of service (NULL pointer used) via a crafted AVI file.

The bug was discovered 12/23/2016. The weakness was disclosed 12/23/2016 (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-7905 since 09/09/2016. It is possible to initiate the attack remotely. No form of authentication is needed for 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 scanner Nessus provides a plugin with the ID 94129 (openSUSE Security Update : ffmpeg (openSUSE-2016-1203)), 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 169282 (OpenSuSE Security Update for ffmpeg (openSUSE-SU-2016:2556-1)).

Upgrading to version 3.1.4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94129) and SecurityFocus (BID 94837†). The entries VDB-94641, VDB-94642, VDB-94643 and VDB-94644 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

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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: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94129
Nessus Name: openSUSE Security Update : ffmpeg (openSUSE-2016-1203)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FFmpeg 3.1.4

Timelineinfo

09/09/2016 🔍
10/18/2016 +39 days 🔍
10/19/2016 +1 days 🔍
12/12/2016 +54 days 🔍
12/23/2016 +11 days 🔍
12/23/2016 +0 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-2016-7905 (🔍)
GCVE (CVE): GCVE-0-2016-7905
GCVE (VulDB): GCVE-100-94647
SecurityFocus: 94837 - FFmpeg CVE-2016-7905 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 12/23/2016 10:14
Updated: 10/12/2022 14:43
Changes: 12/23/2016 10:14 (55), 07/15/2019 07:57 (11), 10/12/2022 14:43 (12)
Complete: 🔍
Cache ID: 216::103

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