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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0. It has been classified as problematic. This affects an unknown function of the component HTTP Live Streaming Filename Extension Name. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2017-9993. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in FFmpeg up to 2.8.11/3.0.7/3.1.7/3.2.4/3.3.0 (Multimedia Processing Software). This affects an unknown code block of the component HTTP Live Streaming Filename Extension Name. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

FFmpeg before 2.8.12, 3.0.x and 3.1.x before 3.1.9, 3.2.x before 3.2.6, and 3.3.x before 3.3.2 does not properly restrict HTTP Live Streaming filename extensions and demuxer names, which allows attackers to read arbitrary files via crafted playlist data.

The bug was discovered 05/31/2017. The weakness was released 06/28/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-9993 since 06/28/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102807 (Debian DSA-3957-1 : 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 176709 (Debian Security Update for libav (DLA 1630-1)).

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 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102807) and SecurityFocus (BID 99315†). Entries connected to this vulnerability are available at VDB-102892, VDB-103711, VDB-104549 and VDB-104601. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Multimedia Processing Software

Name

• FFmpeg

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.8.8
• 2.8.9
• 2.8.10
• 2.8.11
• 3.0
• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.1
• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.2
• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.3.0

License

• open-source

Website

• Product: https://ffmpeg.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: 102807
Nessus Name: Debian DSA-3957-1 : ffmpeg - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53375
OpenVAS Name: Debian Security Advisory DSA 3957-1 (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: 🔍

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

Timelineinfo

05/31/2017 🔍
06/28/2017 +28 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
06/28/2017 +0 days 🔍
08/28/2017 +61 days 🔍
08/29/2017 +1 days 🔍
12/09/2022 +1928 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 189ff4219644532bdfa7bab28dfedaee4d6d4021⛔
Researcher: Thierry Foucu
Status: Confirmed

CVE: CVE-2017-9993 (🔍)
GCVE (CVE): GCVE-0-2017-9993
GCVE (VulDB): GCVE-100-102891

OVAL: 🔍

SecurityFocus: 99315 - FFmpeg CVE-2017-9993 Arbitrary File Read Vulnerability

See also: 🔍

Entryinfo

Created: 06/28/2017 16:40
Updated: 12/09/2022 12:51
Changes: 06/28/2017 16:40 (78), 10/21/2019 08:59 (4), 12/30/2020 07:12 (2), 12/09/2022 12:44 (4), 12/09/2022 12:51 (1)
Complete: 🔍
Cache ID: 216:FB5:103

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