RHSA-2021:5238 — Security Advisory
Red Hat Security Advisory: virt:rhel and virt-devel:rhel security update
Severity
LowRed Hat Product Security
Products
Official CSAF product identity
Published · December 21, 2021
Updated · November 1, 2026
Topic
An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Low. 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
Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
Security Fix(es):
-
QEMU: off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (CVE-2021-3930)
-
QEMU: net: e1000: infinite loop while processing transmit descriptors (CVE-2021-20257)
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.