SB2024012532 - Fedora 38 update for libvirt

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2024012532

SB2024012532 - Fedora 38 update for libvirt

Published: January 25, 2024

Security Bulletin ID SB2024012532
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Race condition (CVE-ID: CVE-2023-3750)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition within the virStoragePoolObjListSearch() function. which does not return a locked pool as expected. A remote attacker with ability to connect to the read-only socket can crash the libvirt daemon.


2) Memory leak (CVE-ID: CVE-2023-2700)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

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


The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak within the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup. A local user can repeatedly query an SR-IOV PCI device's capabilities to cause memory leak and perform denial of service attack.


Remediation

Install update from vendor's website.

References