VulnerabilityModified
CVE-2021-4218
This flaw allows a local attacker with local access to cause a denial of service while the system reboots.
MEDIUM 5.5EPSS 0.30%
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.30% probability · 23th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-665
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-4218Third Party Advisory
- https://bugs.centos.org/view.php?id=18395Exploit, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2048359Issue Tracking, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-4218Third Party Advisory
- https://bugs.centos.org/view.php?id=18395Exploit, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2048359Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.