util-linux up to 2.37.1 /proc/sysvipc/sem integer overflow

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CVSS Meta Temp Score
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6.0$0-$5k0.00

A vulnerability was found in util-linux up to 2.37.1. It has been declared as critical. This vulnerability affects an unknown functionality of the file /proc/sysvipc/sem. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-190. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file.

The weakness was disclosed 07/30/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-37600 since 07/28/2021. The attack can be initiated remotely. The successful exploitation needs a single authentication. Technical details are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

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VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-190
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: github.com

Timelineinfoedit

07/28/2021 CVE assigned
07/30/2021 +2 days Advisory disclosed
07/30/2021 +0 days VulDB entry created
08/06/2021 +7 days VulDB last update

Sourcesinfoedit

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-37600 (🔒)

Entryinfoedit

Created: 07/30/2021 07:55 PM
Updated: 08/06/2021 02:30 AM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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