openEuler update for libvirt

1) Information disclosure

EUVDB-ID: #VU46198

Risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-14339

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to libvirt leaks a file descriptor for /dev/mapper/control. A remote user on guest operating system can obtain leaked descriptor address and escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

libvirt-daemon-driver-storage-gluster: before 6.2.0-10

libvirt-daemon-driver-secret: before 6.2.0-10

libvirt-devel: before 6.2.0-10

libvirt-daemon: before 6.2.0-10

libvirt-daemon-driver-storage-rbd: before 6.2.0-10

libvirt-daemon-driver-storage-core: before 6.2.0-10

libvirt-daemon-driver-storage: before 6.2.0-10

libvirt-debugsource: before 6.2.0-10

libvirt-daemon-driver-network: before 6.2.0-10

libvirt-debuginfo: before 6.2.0-10

libvirt-daemon-config-network: before 6.2.0-10

libvirt-daemon-driver-interface: before 6.2.0-10

libvirt-daemon-driver-nodedev: before 6.2.0-10

libvirt-client: before 6.2.0-10

libvirt-daemon-qemu: before 6.2.0-10

libvirt-daemon-config-nwfilter: before 6.2.0-10

libvirt-daemon-kvm: before 6.2.0-10

libvirt-bash-completion: before 6.2.0-10

libvirt-daemon-driver-storage-mpath: before 6.2.0-10

libvirt-docs: before 6.2.0-10

libvirt-daemon-driver-storage-iscsi-direct: before 6.2.0-10

libvirt-daemon-driver-storage-disk: before 6.2.0-10

libvirt-lock-sanlock: before 6.2.0-10

libvirt-daemon-driver-storage-iscsi: before 6.2.0-10

libvirt-wireshark: before 6.2.0-10

libvirt-nss: before 6.2.0-10

libvirt-daemon-driver-storage-logical: before 6.2.0-10

libvirt-admin: before 6.2.0-10

libvirt-libs: before 6.2.0-10

libvirt-daemon-driver-storage-scsi: before 6.2.0-10

libvirt-daemon-driver-nwfilter: before 6.2.0-10

libvirt-daemon-driver-qemu: before 6.2.0-10

libvirt: before 6.2.0-10

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-gluster:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-secret:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-rbd:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-core:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-network:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-config-network:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-interface:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-nodedev:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-client:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-qemu:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-config-nwfilter:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-kvm:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-bash-completion:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-mpath:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-docs:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-iscsi-direct:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-disk:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-lock-sanlock:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-iscsi:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-wireshark:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-nss:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-logical:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-admin:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-libs:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-storage-scsi:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-nwfilter:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt-daemon-driver-qemu:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libvirt:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1010

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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