VDB-11352 · SA55802 · OSVDB 100495

FFmpeg 2.0.1 libavcodec/pngdsp.c add_bytes_l2_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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9.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in FFmpeg 2.0.1. Affected by this vulnerability is the function add_bytes_l2_c of the file libavcodec/pngdsp.c. The manipulation results in memory corruption. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in FFmpeg 2.0.1 (Multimedia Processing Software). Affected is the function add_bytes_l2_c of the file libavcodec/pngdsp.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 08/30/2013 by Piotr Bandurski (ami_stuff) as avcodec/pngdsp: fix (un)signed type in end comparission as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The public release has been coordinated in cooperation with the vendor. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

It is declared as proof-of-concept.

Upgrading to version 2.1 eliminates this vulnerability. The upgrade is hosted for download at git.videolan.org. 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 OSVDB (100495†) and Secunia (SA55802†). The entries VDB-11348, VDB-11349, VDB-11350 and VDB-11351 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • FFmpeg 2.0.1
  • Libav 0.8.8/9.8

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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: 🔍
Access: Public
Status: Proof-of-Concept
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 2.1
Patch: git.videolan.org

Timelineinfo

08/30/2013 🔍
08/30/2013 +0 days 🔍
11/29/2013 +91 days 🔍
12/04/2013 +5 days 🔍
04/17/2019 +1960 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: avcodec/pngdsp: fix (un)signed type in end comparission
Researcher: Piotr Bandurski (ami_stuff)
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-11352
Secunia: 55802 - FFmpeg Multiple Vulnerabilities, Moderately Critical
OSVDB: 100495

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/04/2013 11:43
Updated: 04/17/2019 09:20
Changes: 12/04/2013 11:43 (56), 04/17/2019 09:20 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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