| Revision Date: | 2022-08-02 | Version: | 635 | | Title: | RHSA-2022:5821: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update (Moderate) | | 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: QXL: integer overflow in cursor_alloc() can lead to heap buffer overflow (CVE-2021-4206)
QEMU: QXL: double fetch in qxl_cursor() can lead to heap buffer overflow (CVE-2021-4207)
QEMU: virtio-net: map leaking on error during receive (CVE-2022-26353)
QEMU: vhost-vsock: missing virtqueue detach on error can lead to memory leak (CVE-2022-26354)
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):
RHEL 9.0 guest with vsock device migration failed from RHEL 9.0 > RHEL 8.6 (BZ#2071103)
Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs) (BZ#2072242)
Remove upstream-only devices from the qemu-kvm binary (BZ#2077928)
When doing a cpu-baseline between skylake and cascadelake, cascadelake is selected as baseline. (BZ#2084030)
Virt-v2v can't convert rhel8.6 guest from VMware on rhel8.6 (BZ#2093415)
Enhancement(s):
Allow memory prealloc from multiple threads (BZ#2075569)
| | Family: | unix | Class: | patch | | Status: | | Reference(s): | CVE-2021-4206
CVE-2021-4207
CVE-2022-26353
CVE-2022-26354
RHSA-2022:5821
| | Platform(s): | Red Hat Enterprise Linux 8
| Product(s): | | | Definition Synopsis | | Red Hat Enterprise Linux must be installed OR Package Information
Red Hat Enterprise Linux 8 is installed
OR Red Hat CoreOS 4 is installed
AND
Module virt:rhel is enabled
Module virt-devel:rhel is enabled
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