RHSA-2022:1053 - Security Advisory

Topic

An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

Description

The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. 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.

Security Fix(es):

• expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution (CVE-2022-25235)
• expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution (CVE-2022-25236)
• expat: Integer overflow in storeRawNames() (CVE-2022-25315)

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.

Bug Fix(es):

• Red Hat Virtualization Host was rebased on Red Hat Enterprise Linux 8.5.0.3. (BZ#2048407)
• Rebase package(s) to version: libvirt-7.6.0-6.1.module+el8.5.0+14474+b3410d40

Highlights and important bug fixes: consume libvirt fix for failure to connect socket to '/run/libvirt/virtlogd-sock' - possibly caused by too many open files from libvirtd. (BZ#2057048)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/2974891

Affected Products

• Red Hat Virtualization 4 for RHEL 8 x86_64
• Red Hat Virtualization Host 4 for RHEL 8 x86_64

Fixes

• BZ - 2034626 - Upgrade elfutils to elfutils-0.185-1.el8
• BZ - 2048407 - Rebase RHV-H 4.4.10 on RHEL 8.5.0.3
• BZ - 2056363 - CVE-2022-25315 expat: Integer overflow in storeRawNames()
• BZ - 2056366 - CVE-2022-25235 expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution
• BZ - 2056370 - CVE-2022-25236 expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution
• BZ - 2057048 - consume libvirt fix for: Failed to connect socket to '/run/libvirt/virtlogd-sock' - possibly caused by Too many open files from libvirtd

CVEs

• CVE-2022-25235
• CVE-2022-25236
• CVE-2022-25315

References

• https://access.redhat.com/security/updates/classification/#important