CVE-2020-10703

Publication date 13 April 2020

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libvirt	20.04 LTS focal	Not affected
	19.10 eoan	Fixed 5.4.0-0ubuntu5.4
	18.04 LTS bionic	Fixed 4.0.0-1ubuntu8.17
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

mdeslaur

introduced by: https://libvirt.org/git/?p=libvirt.git;a=commit;h=5d5c732d748d644ec14626bce448e84bdc4bd93e

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libvirt	Upstream: https://libvirt.org/git/?p=libvirt.git;a=commit;h=dfff16a7c261f8d28e3abe60a47165f845fa952f

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H