Ubuntu update for linux-realtime
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2024-49967 CVE-2024-53057 CVE-2024-50264 |
| CWE-ID | CWE-20 CWE-416 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Ubuntu Operating systems & Components / Operating system linux-image-6.11.0-1003-realtime (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU99223
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-49967
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the do_split() function in fs/ext4/namei.c. A local user can perform a denial of service (DoS) attack.
MitigationUpdate the affected package linux-realtime to the latest version.
Vulnerable software versionsUbuntu: 24.10
linux-image-6.11.0-1003-realtime (Ubuntu package): before 6.11.0-1003.3
CPE2.3- cpe:2.3:o:canonical:ubuntu:24.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:linux-image-6_11_0-1003-realtime_ubuntu_package:*:*:*:*:*:ubuntu:*:*
http://ubuntu.com/security/notices/USN-7169-5
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) Use-after-free
EUVDB-ID: #VU100707
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-53057
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the qdisc_tree_reduce_backlog() function in net/sched/sch_api.c. A local user can escalate privileges on the system.
MitigationUpdate the affected package linux-realtime to the latest version.
Vulnerable software versionsUbuntu: 24.10
linux-image-6.11.0-1003-realtime (Ubuntu package): before 6.11.0-1003.3
CPE2.3 External linkshttp://ubuntu.com/security/notices/USN-7169-5
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) Use-after-free
EUVDB-ID: #VU100612
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-50264
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the virtio_transport_destruct() function in net/vmw_vsock/virtio_transport_common.c. A local user can escalate privileges on the system.
MitigationUpdate the affected package linux-realtime to the latest version.
Vulnerable software versionsUbuntu: 24.10
linux-image-6.11.0-1003-realtime (Ubuntu package): before 6.11.0-1003.3
CPE2.3 External linkshttp://ubuntu.com/security/notices/USN-7169-5
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.
