Vulnerability identifier: #VU11465

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5748

CWE-ID: CWE-400

Exploitation vector: 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 cause DoS condition on the target system.

The weakness exists due to a flaw in qemu/qemu_monitor.c in libvirt. A remote attacker can supply a large QEMU reply, trigger resource exhaustion and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 0.2.0 - 4.2.0 rc1

---

External links
http://lists.debian.org/debian-lts-announce/2018/03/msg00018.html

---

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.