libav 9.21 libavcodec decode_residual h264 Video File out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in libav 9.21. It has been rated as critical. This vulnerability affects the function decode_residual of the component libavcodec. Performing a manipulation as part of h264 Video File results in out-of-bounds. This vulnerability was named CVE-2017-7208. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in libav 9.21 (Multimedia Player Software). This affects the function decode_residual of the component libavcodec. The manipulation as part of a h264 Video File leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

The decode_residual function in libavcodec in libav 9.21 allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.

The bug was discovered 03/21/2017. The weakness was presented 03/21/2017 as Bug 1000 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.libav.org. This vulnerability is uniquely identified as CVE-2017-7208 since 03/21/2017. 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 scanner Nessus provides a plugin with the ID 104056 (Debian DLA-1142-1 : libav security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176191 (Debian Security Update for libav (DSA 4012-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104056) and SecurityFocus (BID 97005†). See VDB-99849 and VDB-102890 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

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

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104056
Nessus Name: Debian DLA-1142-1 : libav security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53380
OpenVAS Name: Debian Security Advisory DSA 4012-1 (libav - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

03/21/2017 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
10/21/2017 +214 days 🔍
10/23/2017 +2 days 🔍
09/10/2020 +1053 days 🔍

Sourcesinfo

Advisory: Bug 1000
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7208 (🔍)
GCVE (CVE): GCVE-0-2017-7208
GCVE (VulDB): GCVE-100-98343

OVAL: 🔍

SecurityFocus: 97005 - libavcodec CVE-2017-7208 Out of Bounds Read Denial of Service Vulnerability
OSVDB: - CVE-2017-7208 - Libav - Buffer Over-Read Issue

See also: 🔍

Entryinfo

Created: 03/21/2017 17:13
Updated: 09/10/2020 17:06
Changes: 03/21/2017 17:13 (79), 09/10/2020 17:06 (7)
Complete: 🔍
Cache ID: 216::103

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