VDB-7503 · CVE-2012-6615 · BID 57565

FFmpeg 1.0/1.0.1 libavcodec/ass_split.c null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in FFmpeg 1.0/1.0.1. Affected by this issue is some unknown functionality of the file libavcodec/ass_split.c. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2012-6615. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in FFmpeg 1.0/1.0.1 (Multimedia Processing Software). It has been classified as problematic. This affects some unknown processing of the file libavcodec/ass_split.c. 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 ff_ass_split_override_codes function in libavcodec/ass_split.c in FFmpeg before 1.0.2 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a subtitle dialog without text.

The issue has been introduced in 09/28/2012. The weakness was presented 01/21/2013 (Website). It is possible to read the advisory at osvdb.org. This vulnerability is uniquely identified as CVE-2012-6615 since 12/24/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 115 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.0.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 57565†), OSVDB (89592†) and Secunia (SA51964†). See VDB-8655, VDB-8656, VDB-8658 and VDB-65887 for similar entries. 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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: FFmpeg 1.0.2
Patch: git.videolan.org

Timelineinfo

09/28/2012 🔍
01/21/2013 +115 days 🔍
01/21/2013 +0 days 🔍
01/21/2013 +0 days 🔍
01/28/2013 +7 days 🔍
02/01/2013 +4 days 🔍
12/24/2013 +326 days 🔍
12/24/2013 +0 days 🔍
08/18/2017 +1333 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: osvdb.org⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-6615 (🔍)
GCVE (CVE): GCVE-0-2012-6615
GCVE (VulDB): GCVE-100-7503
SecurityFocus: 57565 - FFmpeg Multiple Denial of Service Vulnerabilities
Secunia: 51964 - FFmpeg Multiple Vulnerabilities, Less Critical
OSVDB: 89592

See also: 🔍

Entryinfo

Created: 02/01/2013 10:21
Updated: 08/18/2017 13:51
Changes: 02/01/2013 10:21 (58), 08/18/2017 13:51 (6)
Complete: 🔍
Committer:
Cache ID: 216::103

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

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