FFmpeg up to 3.4.2 libavcodec libavcodec/utvideodec.c decode_init AVI File out-of-bounds
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.8 | $0-$5k | 0.00 |
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 vulnerability database at Tenable (120988). Similar entries are available at 102891, 102892, 106023 and 106024.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / 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 |
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Today | unlock | unlock | unlock | unlock |
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.ffmpeg.org
Timeline
06/28/2017 🔍02/27/2018 🔍
02/28/2018 🔍
02/28/2018 🔍
02/28/2018 🔍
02/28/2018 🔍
01/07/2019 🔍
01/08/2019 🔍
02/16/2023 🔍
Sources
Product: ffmpeg.orgAdvisory: 7414d0bda7763f9bd69c26c068e482ab297c1c96
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-7557 (🔍)
OVAL: 🔍
SecurityFocus: 99317 - FFmpeg CVE-2017-9994 Heap Buffer Overflow Vulnerability
See also: 🔍
Entry
Created: 02/28/2018 16:30Updated: 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: 🔍
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