RedHat: RHSA-2020-1351:01 Important: qemu-kvm security update
Summary
Kernel-based Virtual Machine (KVM) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm packages provide the
user-space component for running virtual machines that use KVM.
Security Fix(es):
* QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
(CVE-2020-7039)
* QEMU: Slirp: potential OOB access due to unsafe snprintf() usages
(CVE-2020-8608)
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.
Summary
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
After installing this update, shut down all running virtual machines. Once
all virtual machines have shut down, start them again for this update to
take effect.
References
https://access.redhat.com/security/cve/CVE-2020-7039 https://access.redhat.com/security/cve/CVE-2020-8608 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
Source:
qemu-kvm-1.5.3-167.el7_7.6.src.rpm
x86_64:
qemu-img-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-common-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-tools-1.5.3-167.el7_7.6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
qemu-kvm-1.5.3-167.el7_7.6.src.rpm
x86_64:
qemu-img-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-common-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-167.el7_7.6.x86_64.rpm
qemu-kvm-tools-1.5.3-167.el7_7.6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.7Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - x86_64
Bugs Fixed
1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages
