Alerts This Week
Warning Icon 1 640
Alerts This Week
Warning Icon 1 640

Red Hat Enterprise Linux 8: RHSA-2021-3061-01 Moderate: DoS Threat Fix

red hat
Calendar Grey August 10, 2021
Dist Redhat Esm H88
Ubuntu issues a significant security patch for kernel:ubuntu-lts and kernel-devel:ubuntu-lts modules to mitigate multiple vulnerabilities.
An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8

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

Summary

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: msix: OOB access during mmio operations may lead to DoS (CVE-2020-13754)
* hivex: Buffer overflow when provided invalid node key length (CVE-2021-3504)
* QEMU: net: an assert failure via eth_get_gso_type (CVE-2020-27617)
* QEMU: net: infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416)
* qemu: out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221)
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):
* cannot restart default network and firewalld: iptables: No chain/target/match by that name. (BZ#1958301)
* RHEL8.4 Nightly[0322] - KVM guest fails to find zipl boot menu index (qemu-kvm) (BZ#1975679)

Topics%20covered

Topics Covered

security advisory red hat moderate severity kvm doS threat libguestfs qemu

References

https://access.redhat.com/security/cve/CVE-2020-13754 https://access.redhat.com/security/cve/CVE-2020-27617 https://access.redhat.com/security/cve/CVE-2021-3416 https://access.redhat.com/security/cve/CVE-2021-3504 https://access.redhat.com/security/cve/CVE-2021-20221 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: SLOF-20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418.src.rpm hivex-1.3.18-21.module+el8.4.0+10770+19c037f9.src.rpm libguestfs-1.40.2-27.module+el8.4.0+9282+0bdec052.src.rpm libguestfs-winsupport-8.2-1.module+el8.3.0+6423+e4cb6418.src.rpm libiscsi-1.18.0-8.module+el8.1.0+4066+0f1aadab.src.rpm libnbd-1.2.2-1.module+el8.3.0+7353+9de0a3cc.src.rpm libvirt-6.0.0-35.1.module+el8.4.0+11273+64eb94ef.src.rpm libvirt-dbus-1.3.0-2.module+el8.3.0+6423+e4cb6418.src.rpm libvirt-python-6.0.0-1.module+el8.3.0+6423+e4cb6418.src.rpm nbdkit-1.16.2-4.module+el8.3.0+6922+fd575af8.src.rpm netcf-0.2.8-12.module+el8.1.0+4066+0f1aadab.src.rpm perl-Sys-Virt-6.0.0-1.module+el8.3.0+6423+e4cb6418.src.rpm qemu-kvm-4.2.0-48.module+el8.4.0+11909+3300d70f.3.src.rpm seabios-1.13.0-2.module+el8.3.0+7353+9de0a3cc.src.rpm sgabios-0.20170427git-3.module+el8.1.0+4066+0f1aadab.src.rpm supermin-5.1.19-10.module+el8.3.0+6423+e4cb6418.src.rpm
aarch64: hivex-1.3.18-21.module+el8.4.0+10770+19c037f9.aarch64.rpm hivex-debuginfo-1.3.18-21.module+el8.4.0+10770+19c037f9.aarch64.rpm hivex-debugsource-1.3.18-21.module+el8.4.0+10770+19c037f9.aarch64.rpm hivex-devel-1.3.18-21.module+el8.4.0+10770+19c037f9.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3061-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3061
Issue date: 2021-08-10

Topic

An update for the virt:rhel and virt-devel:rhel modules is now availablefor Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat moderate severity kvm doS threat libguestfs qemu

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1842363 - CVE-2020-13754 QEMU: msix: OOB access during mmio operations may lead to DoS

1891668 - CVE-2020-27617 QEMU: net: an assert failure via eth_get_gso_type

1924601 - CVE-2021-20221 qemu: out-of-bound heap buffer access via an interrupt ID field

1932827 - CVE-2021-3416 QEMU: net: infinite loop in loopback mode may lead to stack overflow

1949687 - CVE-2021-3504 hivex: Buffer overflow when provided invalid node key length

1958301 - cannot restart default network and firewalld: iptables: No chain/target/match by that name. [rhel-8.4.0.z]

Get the latest News and Insights

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

Your message here