Ubuntu update for libvirt

Published: 2024-04-29

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-1441 CVE-2024-2494
CWE-ID	CWE-193 CWE-789
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system libvirt0 (Ubuntu package) Operating systems & Components / Operating system package or component libvirt-daemon-system (Ubuntu package) Operating systems & Components / Operating system package or component libvirt-daemon (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Off-by-one

EUVDB-ID: #VU87448

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-2024-1441

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

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

The vulnerability exists due to an off-by-one error in the udevListInterfacesByStatus() function when the number of interfaces exceeds the size of the "names" array. A local user can trigger an off-by-one error and crash the daemon.

Mitigation

Update the affected package libvirt to the latest version.

Vulnerable software versions

Ubuntu: 24.04

libvirt0 (Ubuntu package): before 10.0.0-2ubuntu8.1

libvirt-daemon-system (Ubuntu package): before 10.0.0-2ubuntu8.1

libvirt-daemon (Ubuntu package): before 10.0.0-2ubuntu8.1

CPE2.3

External links

https://ubuntu.com/security/notices/USN-6734-2

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.

2) Uncontrolled Memory Allocation

EUVDB-ID: #VU87970