Moderate: virt:8.2 and virt-devel:8.2 security and bug fix update

Synopsis

Moderate: virt:8.2 and virt-devel:8.2 security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for the virt:8.2 and virt-devel:8.2 modules is now available for Advanced Virtualization for RHEL 8.2.1.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.

Security Fix(es):

• libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c (CVE-2020-25637)
  
• QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092)
  

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):

• virtiofsd core dump in KATA Container (BZ#1883869)

Solution

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

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Advanced Virtualization 8 x86_64
• Red Hat Enterprise Linux Advanced Virtualization (for RHEL Server for IBM Power LE) 8 ppc64le
• Red Hat Enterprise Linux Advanced Virtualization (for RHEL Server for ARM 64) 8 aarch64
• Red Hat Enterprise Linux Advanced Virtualization (for RHEL Server for IBM System Z) 8 s390x

Fixes

• BZ - 1860283 - CVE-2020-16092 QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c
• BZ - 1881037 - CVE-2020-25637 libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c

CVEs

• CVE-2020-16092
• CVE-2020-25637

References

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