RHSA-2022:1263 — Security 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 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.

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.

Security Fix(es):

• kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

• kernel: use-after-free in RDMA listen() (CVE-2021-4028)

• kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

• kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

• aide: heap-based buffer overflow on outputs larger than B64_BUF (CVE-2021-45417)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates (CVE-2022-0778)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

• cyrus-sasl: failure to properly escape SQL input allows an attacker to execute arbitrary SQL commands (CVE-2022-24407)

• 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):

• RHV-H has been rebased on RHEL-7.9.z #13 (BZ#2048409)