Privilege escalation in libvirt
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-14339 |
| CWE-ID | CWE-200 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
libvirt Universal components / Libraries / Libraries used by multiple products |
| Vendor | libvirt.org |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Information disclosure
EUVDB-ID: #VU46198
Risk: Medium
CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-14339
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe 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.
Install update from vendor's website.
Vulnerable software versionslibvirt: 6.2.0 - 6.5.0
External linkshttp://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
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
