FFmpeg up to 3.4.2 libavcodec libavcodec/utvideodec.c decode_init AVI File out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in FFmpeg up to 3.4.2 and classified as problematic. This affects the function decode_init of the file libavcodec/utvideodec.c of the component libavcodec. This manipulation as part of AVI File causes out-of-bounds. This vulnerability is registered as CVE-2018-7557. Remote exploitation of the attack is possible. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in FFmpeg up to 3.4.2 (Multimedia Processing Software) and classified as problematic. Affected by this vulnerability is the function decode_init of the file libavcodec/utvideodec.c of the component libavcodec. The manipulation as part of a AVI File leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

The decode_init function in libavcodec/utvideodec.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.

The bug was discovered 02/27/2018. The weakness was published 02/28/2018 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.ffmpeg.org. This vulnerability is known as CVE-2018-7557 since 02/28/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120988 (Debian DLA-1630-1 : 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 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.ffmpeg.org. A possible mitigation has been published 12 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (120988) and SecurityFocus (BID 99317†). Similar entries are available at VDB-102891, VDB-102892, VDB-106023 and VDB-106024. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 120988
Nessus Name: Debian DLA-1630-1 : libav security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.ffmpeg.org

Timelineinfo

06/28/2017 🔍
02/27/2018 +244 days 🔍
02/28/2018 +1 days 🔍
02/28/2018 +0 days 🔍
02/28/2018 +0 days 🔍
02/28/2018 +0 days 🔍
01/07/2019 +313 days 🔍
01/08/2019 +1 days 🔍
02/16/2023 +1500 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 7414d0bda7763f9bd69c26c068e482ab297c1c96
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-7557 (🔍)
GCVE (CVE): GCVE-0-2018-7557
GCVE (VulDB): GCVE-100-113935

OVAL: 🔍

SecurityFocus: 99317 - FFmpeg CVE-2017-9994 Heap Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 02/28/2018 16:30
Updated: 02/16/2023 09:17
Changes: 02/28/2018 16:30 (72), 01/09/2020 13:35 (13), 02/16/2023 09:13 (4), 02/16/2023 09:17 (1)
Complete: 🔍
Cache ID: 216::103

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