VDB-108603 · CVE-2017-15186 · BID 101518

FFmpeg up to 3.3.4 AVI File double free

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.
5.1	$0-$5k	0.00

A vulnerability classified as problematic has been found in FFmpeg up to 3.3.4 (Multimedia Processing Software). This affects an unknown code block of the component AVI File Handler. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on availability. The summary by CVE is:

Double free vulnerability in FFmpeg 3.3.4 and earlier allows remote attackers to cause a denial of service via a crafted AVI file.

The bug was discovered 10/20/2017. The weakness was presented 10/24/2017 with Qihoo 360 GearTeam (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2017-15186 since 10/09/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104792 (Debian DSA-4049-1 : ffmpeg - 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 170874 (OpenSUSE Security Update for ffmpeg (openSUSE-SU-2018:0476-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104792). See 109163, 109779, 110112 and 110519 for similar entries.

Productinfo

Type

Multimedia Processing Software

Name

FFmpeg

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 104792
Nessus Name: Debian DSA-4049-1 : ffmpeg - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54731
OpenVAS Name: Debian Security Advisory DSA 4049-1 (ffmpeg - 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

10/09/2017 🔍
10/20/2017 +11 days 🔍
10/20/2017 +0 days 🔍
10/24/2017 +4 days 🔍
10/24/2017 +0 days 🔍
10/25/2017 +1 days 🔍
11/27/2017 +33 days 🔍
11/28/2017 +1 days 🔍
01/20/2021 +1149 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: openwall.com
Researcher: Zhibin Hu, Yihan Lian
Organization: Qihoo 360 GearTeam
Status: Not defined

CVE: CVE-2017-15186 (🔍)
OVAL: 🔍

SecurityFocus: 101518 - FFmpeg CVE-2017-15186 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/25/2017 09:17
Updated: 01/20/2021 16:15
Changes: 10/25/2017 09:17 (75), 11/30/2019 15:40 (6), 01/20/2021 16:15 (3)
Complete: 🔍