FFmpeg libavcodec/pngdec.c decode_zbuf out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg. It has been classified as critical. The affected element is the function decode_zbuf of the file libavcodec/pngdec.c. This manipulation causes out-of-bounds write. This vulnerability appears as CVE-2017-7866. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in FFmpeg (Multimedia Processing Software) (unknown version). It has been declared as critical. Affected by this vulnerability is the function decode_zbuf of the file libavcodec/pngdec.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.

The bug was discovered 04/14/2017. The weakness was presented 04/14/2017 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2017-7866 since 04/14/2017. The exploitation appears to be easy. 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 scanner Nessus provides a plugin with the ID 99722 (openSUSE Security Update : ffmpeg (openSUSE-2017-524)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170052 (OpenSUSE Security Update for ffmpeg2 (openSUSE-SU-2017:1433-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99722) and SecurityFocus (BID 97664†). See VDB-94654, VDB-96751, VDB-96752 and VDB-99846 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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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Nessus ID: 99722
Nessus Name: openSUSE Security Update : ffmpeg (openSUSE-2017-524)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for ffmpeg, openSUSE-SU-2017:2502-1 (ffmpeg,)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

01/23/2017 🔍
04/14/2017 +81 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/28/2017 +14 days 🔍
11/29/2022 +2041 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: e371f031b942d73e02c090170975561fabd5c264⛔
Status: Not defined

CVE: CVE-2017-7866 (🔍)
GCVE (CVE): GCVE-0-2017-7866
GCVE (VulDB): GCVE-100-99853
SecurityFocus: 97664 - FFmpeg CVE-2017-7866 Stack Buffer Overflow Vulnerability
OSVDB: - CVE-2017-7866 - FFmpeg - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/14/2017 11:13
Updated: 11/29/2022 11:36
Changes: 04/14/2017 11:13 (73), 08/31/2020 09:47 (4), 11/29/2022 11:36 (5)
Complete: 🔍
Cache ID: 216:B64:103

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