Fedora: FSA-2021-30 High: OpenStack Keystonemiddleware Security Flaw

Arch Linux Security Advisory ASA-202101-42
=========================================
Severity: Critical
Date    : 2021-01-29
CVE-ID  : CVE-2020-25637
Package : libvirt
Type    : arbitrary code execution
Remote  : No
Link    : https://security.archlinux.org/AVG-1240

Summary
======
The package libvirt before version 1:7.0.0-1 is vulnerable to arbitrary
code execution.

Resolution
=========
Upgrade to 1:7.0.0-1.

# pacman -Syu "libvirt>=1:7.0.0-1"

The problem has been fixed upstream in version 7.0.0.

Workaround
=========
None.

Description
==========
A double free memory issue was found to occur in the libvirt API
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.

Impact
=====
A malicious user could query the API in a way that could result in a
code execution flaw.

References
=========
https://www.openwall.com/lists/oss-security/2020/10/02/1




https://security.archlinux.org/CVE-2020-25637