VDB-65884 · CVE-2012-6615 · ID 2048

FFmpeg 1.0/1.0.1 ff_ass_split_override_codes null pointer dereference

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 classified as problematic was found in FFmpeg 1.0/1.0.1. Impacted is the function ff_ass_split_override_codes. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2012-6615. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in FFmpeg 1.0/1.0.1 (Multimedia Processing Software) and classified as problematic. This vulnerability affects the function ff_ass_split_override_codes. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

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 shared 12/24/2013 as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. This vulnerability was named CVE-2012-6615 since 12/24/2013. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 452 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org.

The vulnerability is also documented in the databases at OSVDB (89592†) and Secunia (SA51964†). The entries VDB-7503, VDB-8655, VDB-8656 and VDB-8658 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

Website

Product: https://ffmpeg.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 20c121c00747d6c3b0b0f98deeff021171b2ed74

Timelineinfo

09/28/2012 🔍
01/28/2013 +122 days 🔍
12/24/2013 +330 days 🔍
12/24/2013 +0 days 🔍
12/24/2013 +0 days 🔍
03/24/2015 +455 days 🔍
01/18/2022 +2492 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 2048
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-6615 (🔍)
GCVE (CVE): GCVE-0-2012-6615
GCVE (VulDB): GCVE-100-65884
Secunia: 51964 - FFmpeg Multiple Vulnerabilities, Less Critical
OSVDB: 89592

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/18/2022 09:41
Changes: 03/24/2015 15:54 (56), 04/15/2019 09:57 (2), 01/18/2022 09:41 (4)
Complete: 🔍
Cache ID: 216::103