SUSE update for the Linux Kernel RT (Live Patch 9 for SLE 15 SP4)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2023-31248 CVE-2023-3609 CVE-2023-3776 CVE-2023-4273 |
| CWE-ID | CWE-416 CWE-121 |
| 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_15_40-rt Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU78325
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-31248
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 nft_chain_lookup_byid() function, which failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace. A local user ca trigger a use-after-free error and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel RT (Live Patch 9 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_15_40-rt: before 3-150400.2.1
kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo: before 3-150400.2.1
kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource: before 3-150400.2.1
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:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp4-rt_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20233773-1/
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: #VU78941
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-3609
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: cls_u32 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 RT (Live Patch 9 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_15_40-rt: before 3-150400.2.1
kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo: before 3-150400.2.1
kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource: before 3-150400.2.1
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:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp4-rt_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20233773-1/
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) Use-after-free
EUVDB-ID: #VU79285
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-3776
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's net/sched: cls_fw 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 RT (Live Patch 9 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_15_40-rt: before 3-150400.2.1
kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo: before 3-150400.2.1
kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource: before 3-150400.2.1
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:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp4-rt_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20233773-1/
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.
4) Stack-based buffer overflow
EUVDB-ID: #VU79487
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-4273
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel RT (Live Patch 9 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_15_40-rt: before 3-150400.2.1
kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo: before 3-150400.2.1
kernel-livepatch-SLE15-SP4-RT_Update_9-debugsource: before 3-150400.2.1
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:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_15_40-rt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp4-rt_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2023/suse-su-20233773-1/
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.
