SUSE update for libvirt



Published: 2022-01-05
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-3975
CVE-2021-4147
CWE-ID CWE-416
CWE-667
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

libvirt-daemon-xen
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-rbd-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-rbd
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-libxl-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-libxl
Operating systems & Components / Operating system package or component

libvirt-nss-debuginfo
Operating systems & Components / Operating system package or component

libvirt-nss
Operating systems & Components / Operating system package or component

libvirt-lock-sanlock-debuginfo
Operating systems & Components / Operating system package or component

libvirt-lock-sanlock
Operating systems & Components / Operating system package or component

libvirt-libs-debuginfo
Operating systems & Components / Operating system package or component

libvirt-libs
Operating systems & Components / Operating system package or component

libvirt-doc
Operating systems & Components / Operating system package or component

libvirt-devel
Operating systems & Components / Operating system package or component

libvirt-debugsource
Operating systems & Components / Operating system package or component

libvirt-daemon-qemu
Operating systems & Components / Operating system package or component

libvirt-daemon-lxc
Operating systems & Components / Operating system package or component

libvirt-daemon-hooks
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-scsi-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-scsi
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-mpath-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-mpath
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-logical-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-logical
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-iscsi-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-iscsi
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-disk-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-disk
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-core-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage-core
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-storage
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-secret-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-secret
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-qemu-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-qemu
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-nwfilter-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-nwfilter
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-nodedev-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-nodedev
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-network-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-network
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-lxc-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-lxc
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-interface-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-driver-interface
Operating systems & Components / Operating system package or component

libvirt-daemon-debuginfo
Operating systems & Components / Operating system package or component

libvirt-daemon-config-nwfilter
Operating systems & Components / Operating system package or component

libvirt-daemon-config-network
Operating systems & Components / Operating system package or component

libvirt-daemon
Operating systems & Components / Operating system package or component

libvirt-client-debuginfo
Operating systems & Components / Operating system package or component

libvirt-client
Operating systems & Components / Operating system package or component

libvirt-admin-debuginfo
Operating systems & Components / Operating system package or component

libvirt-admin
Operating systems & Components / Operating system package or component

libvirt
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU58358

Risk: Low

CVSSv3.1: 2.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3975

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in the qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF. An unprivileged client with a read-only connection can trigger the use-after-free error by calling the virConnectGetAllDomainStats API and crash the application.


Mitigation

Update the affected package libvirt to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

libvirt-daemon-xen: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-rbd-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-rbd: before 4.0.0-9.40.1

libvirt-daemon-driver-libxl-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-libxl: before 4.0.0-9.40.1

libvirt-nss-debuginfo: before 4.0.0-9.40.1

libvirt-nss: before 4.0.0-9.40.1

libvirt-lock-sanlock-debuginfo: before 4.0.0-9.40.1

libvirt-lock-sanlock: before 4.0.0-9.40.1

libvirt-libs-debuginfo: before 4.0.0-9.40.1

libvirt-libs: before 4.0.0-9.40.1

libvirt-doc: before 4.0.0-9.40.1

libvirt-devel: before 4.0.0-9.40.1

libvirt-debugsource: before 4.0.0-9.40.1

libvirt-daemon-qemu: before 4.0.0-9.40.1

libvirt-daemon-lxc: before 4.0.0-9.40.1

libvirt-daemon-hooks: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-scsi-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-scsi: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-mpath-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-mpath: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-logical-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-logical: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-iscsi-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-iscsi: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-disk-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-disk: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-core-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-core: before 4.0.0-9.40.1

libvirt-daemon-driver-storage: before 4.0.0-9.40.1

libvirt-daemon-driver-secret-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-secret: before 4.0.0-9.40.1

libvirt-daemon-driver-qemu-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-qemu: before 4.0.0-9.40.1

libvirt-daemon-driver-nwfilter-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-nwfilter: before 4.0.0-9.40.1

libvirt-daemon-driver-nodedev-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-nodedev: before 4.0.0-9.40.1

libvirt-daemon-driver-network-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-network: before 4.0.0-9.40.1

libvirt-daemon-driver-lxc-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-lxc: before 4.0.0-9.40.1

libvirt-daemon-driver-interface-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-interface: before 4.0.0-9.40.1

libvirt-daemon-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-config-nwfilter: before 4.0.0-9.40.1

libvirt-daemon-config-network: before 4.0.0-9.40.1

libvirt-daemon: before 4.0.0-9.40.1

libvirt-client-debuginfo: before 4.0.0-9.40.1

libvirt-client: before 4.0.0-9.40.1

libvirt-admin-debuginfo: before 4.0.0-9.40.1

libvirt-admin: before 4.0.0-9.40.1

libvirt: before 4.0.0-9.40.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220031-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper locking

EUVDB-ID: #VU62737

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4147

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack (DoS) on the target system.

The vulnerability exists due to double-locking error in the libvirt libxl driver in libxl/libxl_domain.c. A malicious guest can continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition

Mitigation

Update the affected package libvirt to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

libvirt-daemon-xen: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-rbd-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-rbd: before 4.0.0-9.40.1

libvirt-daemon-driver-libxl-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-libxl: before 4.0.0-9.40.1

libvirt-nss-debuginfo: before 4.0.0-9.40.1

libvirt-nss: before 4.0.0-9.40.1

libvirt-lock-sanlock-debuginfo: before 4.0.0-9.40.1

libvirt-lock-sanlock: before 4.0.0-9.40.1

libvirt-libs-debuginfo: before 4.0.0-9.40.1

libvirt-libs: before 4.0.0-9.40.1

libvirt-doc: before 4.0.0-9.40.1

libvirt-devel: before 4.0.0-9.40.1

libvirt-debugsource: before 4.0.0-9.40.1

libvirt-daemon-qemu: before 4.0.0-9.40.1

libvirt-daemon-lxc: before 4.0.0-9.40.1

libvirt-daemon-hooks: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-scsi-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-scsi: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-mpath-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-mpath: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-logical-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-logical: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-iscsi-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-iscsi: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-disk-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-disk: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-core-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-storage-core: before 4.0.0-9.40.1

libvirt-daemon-driver-storage: before 4.0.0-9.40.1

libvirt-daemon-driver-secret-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-secret: before 4.0.0-9.40.1

libvirt-daemon-driver-qemu-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-qemu: before 4.0.0-9.40.1

libvirt-daemon-driver-nwfilter-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-nwfilter: before 4.0.0-9.40.1

libvirt-daemon-driver-nodedev-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-nodedev: before 4.0.0-9.40.1

libvirt-daemon-driver-network-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-network: before 4.0.0-9.40.1

libvirt-daemon-driver-lxc-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-lxc: before 4.0.0-9.40.1

libvirt-daemon-driver-interface-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-driver-interface: before 4.0.0-9.40.1

libvirt-daemon-debuginfo: before 4.0.0-9.40.1

libvirt-daemon-config-nwfilter: before 4.0.0-9.40.1

libvirt-daemon-config-network: before 4.0.0-9.40.1

libvirt-daemon: before 4.0.0-9.40.1

libvirt-client-debuginfo: before 4.0.0-9.40.1

libvirt-client: before 4.0.0-9.40.1

libvirt-admin-debuginfo: before 4.0.0-9.40.1

libvirt-admin: before 4.0.0-9.40.1

libvirt: before 4.0.0-9.40.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220031-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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