Alerts This Week
Warning Icon 1 764
Alerts This Week
Warning Icon 1 764

RedHat RHSA-2020-1351-01 Important: qemu-kvm Buffer Overflow Issues

red hat
Calendar Grey April 7, 2020
Dist Redhat Esm H88
Update for qemu-kvm addresses important security issues on Red Hat Enterprise Linux. Ensure your systems are protected.
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.7 Extended Update Support

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.

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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow important exploitation qemu-kvm KVM update

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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1351-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1351
Issue date: 2020-04-07

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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow important exploitation qemu-kvm KVM update

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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here