Privilege escalation in libvirt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-25637 |
| CWE-ID | CWE-415 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
libvirt Universal components / Libraries / Libraries used by multiple products |
| Vendor | libvirt.org |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Double Free
EUVDB-ID: #VU48591
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-25637
CWE-ID:
CWE-415 - Double Free
Exploit availability: Yes
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionslibvirt: 6.0.0 - 6.7.0
External linkshttp://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
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.
