SUSE update for the Linux Kernel (Live Patch 10 for SLE 15 SP4)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2023-28466 CVE-2023-31436 |
| CWE-ID | CWE-362 CWE-787 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Micro Operating systems & Components / Operating system 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 Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system kernel-livepatch-5_14_21-150400_24_55-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_55-default Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP4_Update_10-debugsource Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Race condition
EUVDB-ID: #VU74628
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-28466
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition caused by a missing lock_sock call within the do_tls_getsockopt() function in net/tls/tls_main.c. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
MitigationUpdate the affected package the Linux Kernel (Live Patch 10 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.3 - 5.4
SUSE Linux Enterprise Live Patching: 15-SP4
SUSE Linux Enterprise Server for SAP Applications 15: SP4
SUSE Linux Enterprise Server 15: SP4
SUSE Linux Enterprise Real Time 15: SP4
SUSE Linux Enterprise High Performance Computing 15: SP4
kernel-livepatch-5_14_21-150400_24_55-default-debuginfo: before 4-150400.2.2
kernel-livepatch-5_14_21-150400_24_55-default: before 4-150400.2.2
kernel-livepatch-SLE15-SP4_Update_10-debugsource: before 4-150400.2.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_55-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_55-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_10-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20232731-1/
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) Out-of-bounds write
EUVDB-ID: #VU76098
Risk: Low
CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-31436
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the qfq_change_class() function in net/sched/sch_qfq.c when handling the MTU value provided to the QFQ Scheduler. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 10 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro: 5.3 - 5.4
SUSE Linux Enterprise Live Patching: 15-SP4
SUSE Linux Enterprise Server for SAP Applications 15: SP4
SUSE Linux Enterprise Server 15: SP4
SUSE Linux Enterprise Real Time 15: SP4
SUSE Linux Enterprise High Performance Computing 15: SP4
kernel-livepatch-5_14_21-150400_24_55-default-debuginfo: before 4-150400.2.2
kernel-livepatch-5_14_21-150400_24_55-default: before 4-150400.2.2
kernel-livepatch-SLE15-SP4_Update_10-debugsource: before 4-150400.2.2
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_55-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_55-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_10-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20232731-1/
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.
