Vulnerability identifier: #VU18154
Vulnerability risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dreference error in libvirt in the way it processes interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service (DoS).
Mitigation
Update to version 5.0.0.
Vulnerable software versions
libvirt: 0.2.0 - 4.10.0
External links
http://libvirt.org/git/?p=libvirt.git&a=commitdiff&h=9ed175fbc2deecfdaeabca7bc77c7e7ae33a3377
http://libvirt.org/git/?p=libvirt.git&a=patch&h=9ed175fbc2deecfdaeabca7bc77c7e7ae33a3377
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.