VDB-9157 · CVE-2013-0855 · OSVDB 94251

FFmpeg 1.0 libavcodec/qdm2.c alac_decode_close numeric error

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in FFmpeg 1.0. Impacted is the function alac_decode_close of the file libavcodec/qdm2.c. This manipulation causes numeric error. This vulnerability is tracked as CVE-2013-0855. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in FFmpeg 1.0 (Multimedia Processing Software) and classified as critical. Affected by this vulnerability is the function alac_decode_close of the file libavcodec/qdm2.c. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

Integer overflow in the alac_decode_close function in libavcodec/alac.c in FFmpeg before 1.1 allows remote attackers to have an unspecified impact via a large number of samples per frame in Apple Lossless Audio Codec (ALAC) data, which triggers an out-of-bounds array access.

The issue has been introduced in 09/30/2012. The weakness was disclosed 11/10/2012 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as alac: fix integer overflow leading to subsequent out of array accesses. as confirmed git commit (GIT Repository). The advisory is shared at git.videolan.org. The public release has been coordinated in cooperation with the project team. This vulnerability is known as CVE-2013-0855 since 01/07/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 41 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.1 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 vulnerability database at OSVDB (94251†). The entries VDB-9161, VDB-9160, VDB-9159 and VDB-9158 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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 1.1
Patch: git.videolan.org

Timelineinfo

09/30/2012 🔍
11/10/2012 +41 days 🔍
11/10/2012 +0 days 🔍
01/07/2013 +58 days 🔍
06/17/2013 +161 days 🔍
12/07/2013 +173 days 🔍
04/15/2019 +1955 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: alac: fix integer overflow leading to subsequent out of array accesses.
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-0855 (🔍)
GCVE (CVE): GCVE-0-2013-0855
GCVE (VulDB): GCVE-100-9157
OSVDB: 94251

See also: 🔍

Entryinfo

Created: 06/17/2013 10:22
Updated: 04/15/2019 09:41
Changes: 06/17/2013 10:22 (64), 04/15/2019 09:41 (1)
Complete: 🔍
Cache ID: 216:FC4:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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