SUSE update for the Linux Kernel (Live Patch 44 for SLE 15 SP1)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-1281 CVE-2023-1829 CVE-2023-4623 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system kernel-livepatch-4_12_14-150100_197_157-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU74122
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-2023-1281
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 in Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 44 for SLE 15 SP1) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Live Patching: 15-SP1
SUSE Linux Enterprise Server for SAP Applications 15: SP1
SUSE Linux Enterprise Server 15: SP1
SUSE Linux Enterprise High Performance Computing 15: SP1
kernel-livepatch-4_12_14-150100_197_157-default: before 2-150100.2.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:
http://www.suse.com/support/update/announcement/2023/suse-su-20234280-1/
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) Use-after-free
EUVDB-ID: #VU75448
Risk: Low
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2023-1829
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tcindex_delete() function. A local user can trigger a use-after-free error and execute arbitrary code with root privileges.
Update the affected package the Linux Kernel (Live Patch 44 for SLE 15 SP1) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Live Patching: 15-SP1
SUSE Linux Enterprise Server for SAP Applications 15: SP1
SUSE Linux Enterprise Server 15: SP1
SUSE Linux Enterprise High Performance Computing 15: SP1
kernel-livepatch-4_12_14-150100_197_157-default: before 2-150100.2.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:
http://www.suse.com/support/update/announcement/2023/suse-su-20234280-1/
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. However, proof of concept for this vulnerability is available.
3) Use-after-free
EUVDB-ID: #VU81664
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-4623
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 the Linux kernel net/sched: sch_hfsc (HFSC qdisc traffic control) component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 44 for SLE 15 SP1) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Live Patching: 15-SP1
SUSE Linux Enterprise Server for SAP Applications 15: SP1
SUSE Linux Enterprise Server 15: SP1
SUSE Linux Enterprise High Performance Computing 15: SP1
kernel-livepatch-4_12_14-150100_197_157-default: before 2-150100.2.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP1:*:*:*:*:*:*:
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP1:*:*:*:*:*:*:
http://www.suse.com/support/update/announcement/2023/suse-su-20234280-1/
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.
