VDB-109163 · CVE-2017-15672 · BID 101690

FFmpeg up to 3.3.4 libavcodec/ffv1dec.c read_header MP4 File out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability, which was classified as critical, has been found in FFmpeg up to 3.3.4 (Multimedia Processing Software). This issue affects the function read_header of the file libavcodec/ffv1dec.c. The manipulation as part of a MP4 File leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The read_header function in libavcodec/ffv1dec.c in FFmpeg 3.3.4 and earlier allows remote attackers to have unspecified impact via a crafted MP4 file, which triggers an out-of-bounds read.

The bug was discovered 11/03/2017. The weakness was presented 11/06/2017 with Qihoo 360 GearTeam (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2017-15672 since 10/20/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 3 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 176709 (Debian Security Update for libav (DLA 1630-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104792). See 102891, 102892, 106023 and 106024 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: c20f4fcb74da2d0432c7b54499bb98f48236b904

Timelineinfo

10/20/2017 🔍
11/03/2017 +14 days 🔍
11/03/2017 +0 days 🔍
11/06/2017 +3 days 🔍
11/06/2017 +0 days 🔍
11/07/2017 +1 days 🔍
11/27/2017 +20 days 🔍
11/28/2017 +1 days 🔍
01/06/2023 +1865 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: d893253fcd93d11258e98857175e93be7d158708
Researcher: Zhibin Hu, Yihan Lian
Organization: Qihoo 360 GearTeam
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-15672 (🔍)
OVAL: 🔍

SecurityFocus: 101690 - FFmpeg CVE-2017-15672 Out-of-Bounds Read Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 11/07/2017 08:04
Updated: 01/06/2023 14:33
Changes: 11/07/2017 08:04 (80), 12/04/2019 17:13 (5), 01/23/2021 08:59 (3), 01/06/2023 14:31 (4), 01/06/2023 14:33 (1)
Complete: 🔍

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