VDB-10879 · OSVDB 98782 · GCVE-100-10879

FFmpeg 1.1 Scratch Buffer Allocation libavcodec/h264.c memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in FFmpeg 1.1. Affected by this vulnerability is an unknown functionality of the file libavcodec/h264.c of the component Scratch Buffer Allocation Handler. This manipulation causes memory corruption. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in FFmpeg 1.1 (Multimedia Processing Software). It has been declared as very critical. Affected by this vulnerability is an unknown functionality of the file libavcodec/h264.c of the component Scratch Buffer Allocation Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The issue has been introduced in 01/06/2013. The weakness was shared 02/20/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as h264: call alloc_scratch_buffers() only once linesize is known as confirmed git commit (GIT Repository). It is possible to read the advisory at git.videolan.org. The vendor cooperated in the coordination of the public release. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD at the moment (estimation calculated on 04/15/2019).

The vulnerability was handled as a non-public zero-day exploit for at least 45 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. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (98782†). The entries VDB-10882, VDB-10881, VDB-10880 and VDB-10878 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.videolan.org

Timelineinfo

01/06/2013 🔍
02/20/2013 +45 days 🔍
02/20/2013 +0 days 🔍
10/23/2013 +245 days 🔍
04/15/2019 +2000 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: h264: call alloc_scratch_buffers() only once linesize is known
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10879
OSVDB: 98782

See also: 🔍

Entryinfo

Created: 10/23/2013 14:26
Updated: 04/15/2019 11:05
Changes: 10/23/2013 14:26 (49), 04/15/2019 11:05 (2)
Complete: 🔍
Cache ID: 216::103

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

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