Double Free Affecting libvirt-daemon-driver-lxc package, versions <0:5.7.0-21.el7


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.05% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ORACLE7-LIBVIRTDAEMONDRIVERLXC-2573183
  • published 10 Apr 2022
  • disclosed 6 Oct 2020

How to fix?

Upgrade Oracle:7 libvirt-daemon-driver-lxc to version 0:5.7.0-21.el7 or higher.
This issue was patched in ELSA-2020-5961.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-lxc package and not the libvirt-daemon-driver-lxc package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients 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. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Scores

version 3.1
Expand this section

NVD

6.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

7.5 high
Expand this section

Red Hat

6.4 medium