Vulnerability identifier: #VU46198
Vulnerability risk: Medium
CVSSv3.1: 7.8 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
libvirt
Universal components / Libraries /
Libraries used by multiple products
Vendor: libvirt.org
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 website.
Vulnerable software versions
libvirt: 6.2.0 - 6.5.0
External links
http://bugzilla.redhat.com/show_bug.cgi?id=1860069
http://access.redhat.com/security/cve/CVE-2020-14339
http://libvirt.org/git/?p=libvirt.git;a=commit;h=22494556542c676d1b9e7f1c1f2ea13ac17e1e3e
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.