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Red Hat 8: RHSA-2023:3822-01 Moderate: libvirt Memory Leak

red hat
Calendar Grey June 27, 2023
Dist Redhat Esm H88
Examine the recent Red Hat announcement concerning virt:rhel and virt-devel, which outlines moderate security vulnerabilities alongside pertinent bug resolutions.
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):
* libvirt: Memory leak in virPCIVirtualFunctionList cleanup (CVE-2023-2700)
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):
* Logs are spammed with ' Domain id=7 is tainted: custom-ga-command' message (BZ#2180030)
* [qemu] snapshot is failing with error libvirt.libvirtError: internal error: QEMU monitor reply exceeds buffer size (10485760 bytes) (BZ#2181575)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix memory leak virtualization KVM libvirt

References

https://access.redhat.com/security/cve/CVE-2023-2700 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: SLOF-20210217-1.module+el8.8.0+16781+9f4724c2.src.rpm hivex-1.3.18-23.module+el8.8.0+16781+9f4724c2.src.rpm libguestfs-1.44.0-9.module+el8.8.0+16781+9f4724c2.src.rpm libguestfs-winsupport-8.8-1.module+el8.8.0+16781+9f4724c2.src.rpm libiscsi-1.18.0-8.module+el8.8.0+16781+9f4724c2.src.rpm libnbd-1.6.0-5.module+el8.8.0+16781+9f4724c2.src.rpm libtpms-0.9.1-2.20211126git1ff6fe1f43.module+el8.8.0+18453+1482ba89.src.rpm libvirt-8.0.0-19.2.module+el8.8.0+18944+7f5acf75.src.rpm libvirt-dbus-1.3.0-2.module+el8.8.0+16781+9f4724c2.src.rpm libvirt-python-8.0.0-2.module+el8.8.0+16781+9f4724c2.src.rpm nbdkit-1.24.0-5.module+el8.8.0+17308+05924798.src.rpm netcf-0.2.8-12.module+el8.8.0+16781+9f4724c2.src.rpm perl-Sys-Virt-8.0.0-1.module+el8.8.0+16781+9f4724c2.src.rpm qemu-kvm-6.2.0-32.module+el8.8.0+18361+9f407f6e.src.rpm seabios-1.16.0-3.module+el8.8.0+16781+9f4724c2.src.rpm sgabios-0.20170427git-3.module+el8.8.0+16781+9f4724c2.src.rpm supermin-5.2.1-2.module+el8.8.0+16781+9f4724c2.src.rpm swtpm-0.7.0-4.20211109gitb79fd91.module+el8.8.0+16781+9f4724c2.src.rpm virt-v2v-1.42.0-22.module+el8.8.0+19067+b66cdac6.src.rpm
aarch64: hivex-1.3.18-23.module+el8.8.0+16781+9f4724c2.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:3822-01
Product: Red Hat Enterprise Linux
Advisory URL: Issue date: 2023-06-27

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 bug fix memory leak virtualization KVM libvirt

Relevant Releases Architectures

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

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

Bugs Fixed

2180030 - Logs are spammed with ' Domain id=7 is tainted: custom-ga-command' message [rhel-8.8.0.z]

2181575 - [qemu] snapshot is failing with error libvirt.libvirtError: internal error: QEMU monitor reply exceeds buffer size (10485760 bytes) [rhel-8.8.0.z]

2203653 - CVE-2023-2700 libvirt: Memory leak in virPCIVirtualFunctionList cleanup

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