Local denial of service in libvirt

1) Uncontrolled Memory Allocation

EUVDB-ID: #VU87970

Risk: Low

CVSSv4.0: 4.3 [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]

CVE-ID: CVE-2024-2494

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled memory allocation within the g_new0() function. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libvirt: 7.0.0 - 10.1.0

CPE2.3

• cpe:2.3:a:libvirt_org:libvirt:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:7.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:libvirt_org:libvirt:7.2.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/security/cve/CVE-2024-2494
https://bugzilla.redhat.com/show_bug.cgi?id=2270115
https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/BKRQXPLPC6B7FLHJXSBQYW7HNDEBW6RJ/
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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