VDB-123171 · CVE-2018-15822 · BID 108034

FFmpeg up to 4.0.2 libavformat/flvenc.c flv_write_packet Packet input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in FFmpeg up to 4.0.2 (Multimedia Processing Software). It has been classified as critical. This affects the function flv_write_packet of the file libavformat/flvenc.c. The manipulation as part of a Packet leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 4.0.2 does not check for an empty audio packet, leading to an assertion failure.

The bug was discovered 07/28/2018. The weakness was released 08/23/2018 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-15822 since 08/23/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 26 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 117517 (openSUSE Security Update : ffmpeg-4 (openSUSE-2018-1004)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171568 (OpenSUSE Security Update for ffmpeg-4 (openSUSE-SU-2018:2723-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117517). Entries connected to this vulnerability are available at 120422, 131583, 133857 and 133858.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.5
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117517
Nessus Name: openSUSE Security Update : ffmpeg-4 (openSUSE-2018-1004)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

07/28/2018 🔍
08/23/2018 +25 days 🔍
08/23/2018 +0 days 🔍
08/23/2018 +0 days 🔍
08/24/2018 +1 days 🔍
09/15/2018 +22 days 🔍
09/17/2018 +2 days 🔍
04/18/2019 +213 days 🔍
05/04/2023 +1477 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 6b67d7f05918f7a1ee8fc6ff21355d7e8736aa10
Status: Not defined

CVE: CVE-2018-15822 (🔍)
SecurityFocus: 108034 - FFmpeg CVE-2019-11338 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 08/24/2018 06:56
Updated: 05/04/2023 10:22
Changes: 08/24/2018 06:56 (75), 05/29/2020 15:01 (5), 05/04/2023 10:16 (5), 05/04/2023 10:22 (2)
Complete: 🔍

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