RHSA-2024:2236 - Security Advisory

Topic

An update for libvirt is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es):

• libvirt: NULL pointer dereference in udevConnectListAllInterfaces() (CVE-2024-2496)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.

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 the updated packages, libvirtd will be restarted automatically.

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.4 x86_64
• Red Hat Enterprise Linux Server - AUS 9.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.4 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.4 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.4 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64
• Red Hat CodeReady Linux Builder for x86_64 9 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.4 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.4 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.4 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.4 aarch64
• Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64
• Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x

Fixes

• BZ - 2269672 - CVE-2024-2496 libvirt: NULL pointer dereference in udevConnectListAllInterfaces()
• RHEL-15267 - Rebase libvirt in RHEL-9.4.0
• RHEL-1717 - Domain XML validating failure when poll max is set to 9223372036854775807
• RHEL-1833 - Suggest to update the formatdomain.html about passt
• RHEL-3231 - Improve relationships between systemd units
• RHEL-4432 - Should fail to define guest with externally launched virtiofsd by enabling exporting filesystem as a readonly mount
• RHEL-4994 - Should fail to define guests by setting virtiofs space_hard/soft_limit
• RHEL-7345 - [libvirt] Guest will be destroyed if iscsi pool is destroyed and libvirtd restart
• RHEL-7382 - Supporting vDPA block in libvirt
• RHEL-7419 - libvirt storage pool goes inactive
• RHEL-7525 - [RFE] libvirt: add WRITE SAME/UNMAP block size definition
• RHEL-7528 - RFE: libvirt - improve support for external snapshots (merge, delete, virsh, etc)
• RHEL-7542 - The path to the guest agent socket file can become too long and cause problems
• RHEL-7545 - [RHEL9] Libvirt requires at least one NUMA node with memory devices
• RHEL-7568 - [RFE] AMD Genoa - Add libvirt support for EPYC-Genoa CPU Model
• RHEL-7569 - virt-qemu-sev-validate validate AMD SEV guest measurements failed on Genoa
• RHEL-7570 - virt-qemu-sev-validate broken when providing --cpu-family/model/stepping without --loader
• RHEL-974 - VM can start with mac address as "00:00:00:00:00:00"
• RHEL-7340 - [libvirt] Add definition of the iGB NIC model
• RHEL-4452 - No error msg prompts when defining domain containing 2 virtio-mem devices with same address base
• RHEL-7040 - Windows guest stucks at the tiancore icon as libvirt doesn't add newer cpu model
• RHEL-14611 - [libvirt]Fail to hotplug a qcow2 disk image with opened fdgroup by virsh attach-device
• RHEL-16870 - Fail to attach a SCSI cdrom with empty source
• RHEL-16878 - Attaching device with unsupported target ccw addr gets unclear error message
• RHEL-17841 - Libvirt starts qemu with '-loadvm SNAP' combined with '-incoming defer' on snapshot revert
• RHEL-18439 - 9.9.0 regression: libvirtd crash in qemuSaveImageDecompressionStart() when reverting to a snapshot
• RHEL-15480 - Fail to attach virtio-mem device to persistent guest config without memory slot
• RHEL-17596 - Migration with '--copy-storage-synchronous-writes' fail
• RHEL-18165 - virsh nodedev-dumpxml dumps invalid xml
• RHEL-18782 - RFE: Allow virDomainBlockResize of disk with <slice type='storage' offset='0' size='321'/>
• RHEL-20444 - Can not plug input device without specifying bus
• RHEL-20609 - Fail to get the name of the Hypervisor driver used
• RHEL-20807 - The default path match pattern for guest agent is problematic.
• RHEL-4607 - RFE Migrate the storage with a destination of a different size
• RHEL-700 - Wrong error info reported when executing virsh client without starting daemon
• RHEL-7100 - [RFE] Postcopy Preemption (libvirt)
• RHEL-735 - Update the interface trustGuestRxFilters and backend setting return succeed but no changes
• RHEL-7416 - [libvirt] RFE: Per-virtqueue IOThread assignment for virtio-blk
• RHEL-22714 - macvtap0 is not automatically removed after update-device and vm shutdown.
• RHEL-15316 - libvirt: support dynamic virtio-mem device via multiple memslots
• RHEL-20337 - Virsh cmd hungs after client connection with authentication is terminated abnormally
• RHEL-21543 - "--disks-port" is not released immediately after migration
• RHEL-22314 - libvirt failing to parse PCI device VPD (virtual private data) for some hardware
• RHEL-22797 - [libvirt] creating external disk snapshot for offline VM does not require disk-only flag
• RHEL-22800 - Unable to get number of block I/O throttle parameters using virsh blkdeviotune
• RHEL-23170 - virt-admin does not work out of the box on RHEL 9 modular libvirt
• RHEL-23212 - Cannot delete a parent snapshot of non-current branch
• RHEL-15288 - [s390x] 'CCW' address is not validated in ABI stability check
• RHEL-7386 - [libvirt] Add support to run virtiofsd inside a user namespace (unprivileged)
• RHEL-24825 - Vm migration with vhostvdpa disk failed
• RHEL-25858 - driver model attribute is ignored in <hostdev> XML
• RHEL-25995 - Cross migration failed

CVEs

• CVE-2024-2496

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.4_release_notes/index