RHSA-2021:5035: Critical: RHV-H security update (redhat-virtualization-host) 4.3.20
The redhat-virtualization-host packages provide the Red Hat Virtualization Host.<br>These packages include redhat-release-virtualization-host. Red Hat<br>Virtualization Hosts (RHVH) are installed using a special build of Red Hat<br>Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and<br>performing administrative tasks.<br>Security Fix(es):<br><li> nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS) (CVE-2021-43527)</li> <li> kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:5035?
The severity of RHSA-2021:5035 is critical.
How do I fix RHSA-2021:5035?
To fix RHSA-2021:5035, update to the latest version of the affected packages listed in the advisory.
Which packages are affected by RHSA-2021:5035?
The affected packages include redhat-release-virtualization-host, redhat-virtualization-host, redhat-virtualization-host-image-update, and redhat-virtualization-host-image-update-placeholder.
What are the consequences of not addressing RHSA-2021:5035?
Failing to address RHSA-2021:5035 can lead to potential exploitation and compromise of the Red Hat Virtualization Host.
Is there a specific version I need to upgrade to for RHSA-2021:5035?
Yes, you should upgrade to redhat-release-virtualization-host 4.3.20-1.el7e or later, or redhat-virtualization-host 4.3.20-20211202.1.el7_9 or later.