CVE-2021-4218

A flaw was found in the Linux kernel’s implementation of reading the SVC RDMA counters. Reading the counter sysctl panics the system. This flaw allows a local attacker with local access to cause a denial of service while the system reboots. The issue is specific to CentOS/RHEL.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2021-4218	Third Party Advisory
https://bugs.centos.org/view.php?id=18395	Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2048359	Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4218	Third Party Advisory
https://bugs.centos.org/view.php?id=18395	Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2048359	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:37

Type	Values Removed	Values Added
References	~~() https://access.redhat.com/security/cve/CVE-2021-4218 - Third Party Advisory~~	() https://access.redhat.com/security/cve/CVE-2021-4218 - Third Party Advisory
References	~~() https://bugs.centos.org/view.php?id=18395 - Exploit, Third Party Advisory~~	() https://bugs.centos.org/view.php?id=18395 - Exploit, Third Party Advisory
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2048359 - Issue Tracking, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2048359 - Issue Tracking, Third Party Advisory

Information

Published : 2022-08-24 16:15

Updated : 2024-11-21 06:37

NVD link : CVE-2021-4218

Mitre link : CVE-2021-4218

CVE.ORG link : CVE-2021-4218

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-665

Improper Initialization

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