RHSA-2021:5035 - Security Advisory
Security Advisory: Critical
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
The redhat-virtualization-host packages provide the Red Hat Virtualization Host.
These packages include redhat-release-virtualization-host. Red Hat
Virtualization Hosts (RHVH) are installed using a special build of Red Hat
Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and
performing administrative tasks.
- nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS) (CVE-2021-43527)
- kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)
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.
For details on how to apply this update, which includes the changes described in this advisory, refer to:
- Red Hat Virtualization 4 for RHEL 7 x86_64
- Red Hat Virtualization Host 4 for RHEL 7 x86_64
Red Hat Virtualization 4 for RHEL 7
Red Hat Virtualization Host 4 for RHEL 7