VDB-179782 · CVE-2021-37600 · GCVE-0-2021-37600

util-linux up to 2.37.1 /proc/sysvipc/sem integer overflow ⚔ [Disputed]

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in util-linux up to 2.37.1. This impacts an unknown function of the file /proc/sysvipc/sem. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2021-37600. The attack can be launched remotely. No exploit exists. The actual existence of this vulnerability is currently in question. It is best practice to apply a patch to resolve this issue.

Detailsinfo

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 integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 07/30/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-37600. Technical details are known, but there is no available exploit.

The real existence of this vulnerability is still doubted at the moment.

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

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Productinfo

Name

util-linux

Version

License

open-source

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

07/28/2021 🔍
07/30/2021 +2 days 🔍
07/30/2021 +0 days 🔍
08/04/2024 +1101 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Disputed: 🔍

CVE: CVE-2021-37600 (🔍)
GCVE (CVE): GCVE-0-2021-37600
GCVE (VulDB): GCVE-100-179782

Entryinfo

Created: 07/30/2021 19:55
Updated: 08/04/2024 05:06
Changes: 07/30/2021 19:55 (37), 08/06/2021 02:30 (2), 08/04/2024 05:06 (35)
Complete: 🔍
Cache ID: 216::103