SB2020111126 - Red Hat Enterprise Linux 7 update for libvirt

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2020111126

SB2020111126 - Red Hat Enterprise Linux 7 update for libvirt

Published: November 11, 2020

Security Bulletin ID SB2020111126
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Double Free (CVE-ID: CVE-2020-25637)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the libvirt API, responsible for requesting information about network interfaces of a running QEMU domain. A local client 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.


Remediation

Install update from vendor's website.

References