Denial of service in libvirt



Published: 2023-07-26
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-3750
CWE-ID CWE-362
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Subscribe 		libvirt
Universal components / Libraries / Libraries used by multiple products

Vendor libvirt.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Race condition

EUVDB-ID: #VU78694

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3750

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

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libvirt: 8.3.0 - 9.5.0

External links

http://bugzilla.redhat.com/show_bug.cgi?id=2222210


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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