Vulnerability identifier: #VU48591
Vulnerability risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-415
Exploitation vector: Local
Exploit availability: Yes
Vulnerable software:
libvirt
Universal components / Libraries /
Libraries used by multiple products
Vendor: libvirt.org
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the libvirt API, responsible for requesting information about network interfaces of a running QEMU domain. A local client connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
libvirt: 6.0.0 - 6.7.0
External links
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html
http://bugzilla.redhat.com/show_bug.cgi?id=1881037
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. However, proof of concept for this vulnerability is available.