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RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2025:12234)

medium Nessus Plugin ID 243012

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Synopsis

The remote Red Hat host is missing a security update for virt:rhel / virt-devel:rhel.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:12234 advisory.

 Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich 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):

 * libtpms: Libtpms Out-of-Bounds Read Vulnerability (CVE-2025-49133)

 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL virt:rhel / virt-devel:rhel packages based on the guidance in RHSA-2025:12234.

See Also

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

https://bugzilla.redhat.com/show_bug.cgi?id=2371585

http://www.nessus.org/u?8324eb10

https://access.redhat.com/errata/RHSA-2025:12234

Plugin Details

Severity: Medium

ID: 243012

File Name: redhat-RHSA-2025-12234.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/30/2025

Updated: 7/30/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2025-49133

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:nbdkit-gzip-plugin, p-cpe:/a:redhat:enterprise_linux:libvirt-python, p-cpe:/a:redhat:enterprise_linux:libguestfs-appliance, p-cpe:/a:redhat:enterprise_linux:libtpms, p-cpe:/a:redhat:enterprise_linux:nbdkit-devel, p-cpe:/a:redhat:enterprise_linux:perl-hivex, p-cpe:/a:redhat:enterprise_linux:virt-v2v, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-nwfilter, p-cpe:/a:redhat:enterprise_linux:libguestfs-rsync, p-cpe:/a:redhat:enterprise_linux:ruby-hivex, p-cpe:/a:redhat:enterprise_linux:libvirt, p-cpe:/a:redhat:enterprise_linux:libiscsi-utils, p-cpe:/a:redhat:enterprise_linux:lua-guestfs, p-cpe:/a:redhat:enterprise_linux:swtpm-tools, p-cpe:/a:redhat:enterprise_linux:nbdfuse, p-cpe:/a:redhat:enterprise_linux:libvirt-nss, p-cpe:/a:redhat:enterprise_linux:libguestfs, p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent, p-cpe:/a:redhat:enterprise_linux:libguestfs-javadoc, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage, p-cpe:/a:redhat:enterprise_linux:swtpm-libs, p-cpe:/a:redhat:enterprise_linux:libguestfs-devel, p-cpe:/a:redhat:enterprise_linux:libguestfs-winsupport, p-cpe:/a:redhat:enterprise_linux:nbdkit, p-cpe:/a:redhat:enterprise_linux:hivex, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-disk, p-cpe:/a:redhat:enterprise_linux:libvirt-dbus, cpe:/o:redhat:rhel_aus:8.6, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-core, p-cpe:/a:redhat:enterprise_linux:nbdkit-example-plugins, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-config-nwfilter, p-cpe:/a:redhat:enterprise_linux:nbdkit-bash-completion, p-cpe:/a:redhat:enterprise_linux:libvirt-client, p-cpe:/a:redhat:enterprise_linux:swtpm-tools-pkcs11, p-cpe:/a:redhat:enterprise_linux:perl-sys-virt, p-cpe:/a:redhat:enterprise_linux:nbdkit-tar-filter, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-qemu, p-cpe:/a:redhat:enterprise_linux:python3-libnbd, p-cpe:/a:redhat:enterprise_linux:libguestfs-tools-c, p-cpe:/a:redhat:enterprise_linux:hivex-devel, p-cpe:/a:redhat:enterprise_linux:libiscsi, p-cpe:/a:redhat:enterprise_linux:qemu-img, p-cpe:/a:redhat:enterprise_linux:netcf, cpe:/o:redhat:rhel_tus:8.6, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-core, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-config-network, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-iscsi, p-cpe:/a:redhat:enterprise_linux:seabios-bin, p-cpe:/a:redhat:enterprise_linux:nbdkit-ssh-plugin, p-cpe:/a:redhat:enterprise_linux:nbdkit-linuxdisk-plugin, p-cpe:/a:redhat:enterprise_linux:libguestfs-java-devel, p-cpe:/a:redhat:enterprise_linux:netcf-libs, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-docs, p-cpe:/a:redhat:enterprise_linux:nbdkit-tmpdisk-plugin, p-cpe:/a:redhat:enterprise_linux:nbdkit-vddk-plugin, p-cpe:/a:redhat:enterprise_linux:libguestfs-bash-completion, p-cpe:/a:redhat:enterprise_linux:supermin-devel, p-cpe:/a:redhat:enterprise_linux:seavgabios-bin, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-secret, p-cpe:/a:redhat:enterprise_linux:virt-v2v-man-pages-uk, p-cpe:/a:redhat:enterprise_linux:libguestfs-gobject, p-cpe:/a:redhat:enterprise_linux:slof, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-mpath, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-nodedev, p-cpe:/a:redhat:enterprise_linux:nbdkit-gzip-filter, p-cpe:/a:redhat:enterprise_linux:libguestfs-man-pages-uk, p-cpe:/a:redhat:enterprise_linux:libnbd, p-cpe:/a:redhat:enterprise_linux:virt-v2v-bash-completion, p-cpe:/a:redhat:enterprise_linux:libguestfs-java, p-cpe:/a:redhat:enterprise_linux:nbdkit-tar-plugin, p-cpe:/a:redhat:enterprise_linux:seabios, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-kvm, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:redhat:enterprise_linux:swtpm, p-cpe:/a:redhat:enterprise_linux:nbdkit-curl-plugin, p-cpe:/a:redhat:enterprise_linux:nbdkit-basic-filters, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-hw-usbredir, p-cpe:/a:redhat:enterprise_linux:libvirt-lock-sanlock, p-cpe:/a:redhat:enterprise_linux:libguestfs-xfs, p-cpe:/a:redhat:enterprise_linux:nbdkit-server, p-cpe:/a:redhat:enterprise_linux:sgabios, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:redhat:enterprise_linux:libguestfs-inspect-icons, p-cpe:/a:redhat:enterprise_linux:ruby-libguestfs, p-cpe:/a:redhat:enterprise_linux:supermin, p-cpe:/a:redhat:enterprise_linux:sgabios-bin, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-scsi, p-cpe:/a:redhat:enterprise_linux:libvirt-devel, p-cpe:/a:redhat:enterprise_linux:swtpm-devel, p-cpe:/a:redhat:enterprise_linux:libguestfs-gobject-devel, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-interface, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common, p-cpe:/a:redhat:enterprise_linux:libvirt-wireshark, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-gluster, p-cpe:/a:redhat:enterprise_linux:libguestfs-tools, p-cpe:/a:redhat:enterprise_linux:nbdkit-xz-filter, p-cpe:/a:redhat:enterprise_linux:libnbd-bash-completion, p-cpe:/a:redhat:enterprise_linux:libiscsi-devel, p-cpe:/a:redhat:enterprise_linux:libguestfs-gfs2, cpe:/o:redhat:rhel_e4s:8.6, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-rbd, p-cpe:/a:redhat:enterprise_linux:libnbd-devel, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-logical, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-gluster, p-cpe:/a:redhat:enterprise_linux:python3-hivex, p-cpe:/a:redhat:enterprise_linux:nbdkit-python-plugin, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-opengl, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-storage-iscsi-direct, p-cpe:/a:redhat:enterprise_linux:libguestfs-rescue, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-curl, p-cpe:/a:redhat:enterprise_linux:perl-sys-guestfs, p-cpe:/a:redhat:enterprise_linux:nbdkit-basic-plugins, p-cpe:/a:redhat:enterprise_linux:libvirt-docs, p-cpe:/a:redhat:enterprise_linux:python3-libvirt, p-cpe:/a:redhat:enterprise_linux:libvirt-libs, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-spice, p-cpe:/a:redhat:enterprise_linux:virt-v2v-man-pages-ja, p-cpe:/a:redhat:enterprise_linux:qemu-kvm, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-ssh, p-cpe:/a:redhat:enterprise_linux:libvirt-daemon-driver-network, p-cpe:/a:redhat:enterprise_linux:nbdkit-nbd-plugin, p-cpe:/a:redhat:enterprise_linux:python3-libguestfs, p-cpe:/a:redhat:enterprise_linux:netcf-devel, p-cpe:/a:redhat:enterprise_linux:libtpms-devel, p-cpe:/a:redhat:enterprise_linux:virt-dib, p-cpe:/a:redhat:enterprise_linux:libguestfs-man-pages-ja

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2025

Vulnerability Publication Date: 6/10/2025

Reference Information

CVE: CVE-2025-49133

CWE: 125

RHSA: 2025:12234