FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0 libavcodec/dfa.c decode_dds1 memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0 and classified as critical. The impacted element is the function decode_dds1 of the file libavcodec/dfa.c. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2017-9992. The attack can only be performed from a local environment. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0 (Multimedia Processing Software). Affected by this issue is the function decode_dds1 of the file libavcodec/dfa.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the decode_dds1 function in libavcodec/dfa.c in FFmpeg before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file.

The bug was discovered 05/05/2017. The weakness was published 06/28/2017 (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2017-9992 since 06/28/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 54 days. During that time the estimated underground price was around $0-$5k. 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 to version 2.8.12, 3.0.8, 3.1.8, 3.2.5 or 3.3.1 eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104056) and SecurityFocus (BID 99319†). Similar entries are available at VDB-98343 and VDB-99849. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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: 🔍

Upgrade: FFmpeg 2.8.12/3.0.8/3.1.8/3.2.5/3.3.1
Patch: github.com

Timelineinfo

05/05/2017 🔍
06/28/2017 +54 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
10/21/2017 +115 days 🔍
10/23/2017 +2 days 🔍
12/09/2022 +1873 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: f52fbf4f3ed02a7d872d8a102006f29b4421f360⛔
Status: Not defined

CVE: CVE-2017-9992 (🔍)
GCVE (CVE): GCVE-0-2017-9992
GCVE (VulDB): GCVE-100-102890

OVAL: 🔍

SecurityFocus: 99319 - FFmpeg CVE-2017-9992 Heap Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 06/28/2017 16:40
Updated: 12/09/2022 12:36
Changes: 06/28/2017 16:40 (78), 10/21/2019 08:44 (4), 12/09/2022 12:36 (5)
Complete: 🔍
Cache ID: 216:E05:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!