SB2024012532 - Fedora 38 update for libvirt

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Main Vulnerability Database SB2024012532

SB2024012532 - Fedora 38 update for libvirt

Published: January 25, 2024

Security Bulletin ID SB2024012532
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 secuirty vulnerabilities.


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

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)

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