Ubuntu update for libvirt
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2024-1441 CVE-2024-2494 CVE-2024-2496 |
| CWE-ID | CWE-193 CWE-789 CWE-476 |
| 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 3 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
DescriptionThe 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.
Update the affected package libvirt to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 23.10
libvirt0 (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon-system (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon (Ubuntu package): before 6.0.0-0ubuntu8.19
CPE2.3- cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu:23.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:libvirt0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon-system_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6734-1
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
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
DescriptionThe 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.
Update the affected package libvirt to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 23.10
libvirt0 (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon-system (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon (Ubuntu package): before 6.0.0-0ubuntu8.19
CPE2.3- cpe:2.3:o:canonical:libvirt0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon-system_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6734-1
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.
3) NULL pointer dereference
EUVDB-ID: #VU88535
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-2024-2496
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the udevConnectListAllInterfaces() function. A local user can trigger a NULL pointer dereference error when detaching a host interface while at the same time collecting the list of interfaces via virConnectListAllInterfaces API.
MitigationUpdate the affected package libvirt to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 23.10
libvirt0 (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon-system (Ubuntu package): before 6.0.0-0ubuntu8.19
libvirt-daemon (Ubuntu package): before 6.0.0-0ubuntu8.19
CPE2.3- cpe:2.3:o:canonical:libvirt0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon-system_ubuntu_package:*:*:*:*:*:ubuntu:*:*
- cpe:2.3:o:canonical:libvirt-daemon_ubuntu_package:*:*:*:*:*:ubuntu:*:*
https://ubuntu.com/security/notices/USN-6734-1
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.
