CVE-2020-10703

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1790725

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10703

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

https://libvirt.org/git/?p=libvirt.git;a=commit;h=7aa0e8c0cb8a6293d0c6f7e3d29c13b96dec2129

https://libvirt.org/git/?p=libvirt.git;a=commit;h=dfff16a7c261f8d28e3abe60a47165f845fa952f

https://lists.fedoraproject.org/archives/list/[email protected]/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/

https://security.netapp.com/advisory/ntap-20200608-0005/

Details

Source: MITRE

Published: 2020-06-02

Updated: 2020-06-16

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4

Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
146032CentOS 8 : virt:rhel and virt-devel:rhel (CESA-2020:4676)NessusCentOS Local Security Checks
high
142728Amazon Linux 2 : libvirt (ALAS-2020-1557)NessusAmazon Linux Local Security Checks
medium
142449RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2020:4676)NessusRed Hat Local Security Checks
high
141679Scientific Linux Security Update : libvirt on SL7.x x86_64 (20201001)NessusScientific Linux Local Security Checks
medium
141632CentOS 7 : libvirt (CESA-2020:4000)NessusCentOS Local Security Checks
medium
141027RHEL 7 : libvirt (RHSA-2020:4000)NessusRed Hat Local Security Checks
medium
137783Photon OS 3.0: Libvirt PHSA-2020-3.0-0104NessusPhotonOS Local Security Checks
medium
137425Fedora 31 : libvirt (2020-5cd83efda7)NessusFedora Local Security Checks
medium
136802Ubuntu 18.04 LTS / 19.10 : libvirt vulnerabilities (USN-4371-1)NessusUbuntu Local Security Checks
medium
136785SUSE SLES12 Security Update : libvirt (SUSE-SU-2020:1289-1)NessusSuSE Local Security Checks
medium
136783SUSE SLES12 Security Update : libvirt (SUSE-SU-2020:1277-1)NessusSuSE Local Security Checks
medium
136660SUSE SLES15 Security Update : libvirt (SUSE-SU-2020:1250-1)NessusSuSE Local Security Checks
medium
136648SUSE SLED15 / SLES15 Security Update : libvirt (SUSE-SU-2020:1208-1)NessusSuSE Local Security Checks
medium