SUSE update for the Linux Kernel (Live Patch 35 for SLE 15 SP2)



Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2023-1872
CVE-2023-1989
CVE-2023-2162
CVE-2023-23454
CWE-ID CWE-416
CWE-843
Exploitation vector Local
Public exploit N/A
Vulnerable software
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

SUSE Linux Enterprise Micro
Operating systems & Components / Operating system

kernel-livepatch-5_3_18-150300_59_118-default
Operating systems & Components / Operating system package or component

kernel-livepatch-5_3_18-150200_24_148-default-debuginfo
Operating systems & Components / Operating system package or component

kernel-livepatch-5_3_18-150200_24_148-default
Operating systems & Components / Operating system package or component

kernel-livepatch-SLE15-SP2_Update_35-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: #VU75529

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-2023-1872

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the io_file_get_fixed function. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 35 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-livepatch-5_3_18-150300_59_118-default: before 2-150300.2.3

kernel-livepatch-5_3_18-150200_24_148-default-debuginfo: before 2-150200.2.3

kernel-livepatch-5_3_18-150200_24_148-default: before 2-150200.2.3

kernel-livepatch-SLE15-SP2_Update_35-debugsource: before 2-150200.2.3

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232401-1/


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: #VU75452

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-2023-1989

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the btsdio_remove() function in driversluetoothtsdio.c. A local user can trigger a use-after-free error and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 35 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-livepatch-5_3_18-150300_59_118-default: before 2-150300.2.3

kernel-livepatch-5_3_18-150200_24_148-default-debuginfo: before 2-150200.2.3

kernel-livepatch-5_3_18-150200_24_148-default: before 2-150200.2.3

kernel-livepatch-SLE15-SP2_Update_35-debugsource: before 2-150200.2.3

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232401-1/


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: #VU75994

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-2162

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a use-after-free error within the scsi_sw_tcp_session_create() function in drivers/scsi/iscsi_tcp.c in SCSI sub-component in the Linux Kernel. A local user can trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update the affected package the Linux Kernel (Live Patch 35 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-livepatch-5_3_18-150300_59_118-default: before 2-150300.2.3

kernel-livepatch-5_3_18-150200_24_148-default-debuginfo: before 2-150200.2.3

kernel-livepatch-5_3_18-150200_24_148-default: before 2-150200.2.3

kernel-livepatch-SLE15-SP2_Update_35-debugsource: before 2-150200.2.3

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232401-1/


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) Type Confusion

EUVDB-ID: #VU71478

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-2023-23454

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a type confusion error within the cbq_classify() function in net/sched/sch_cbq.c in the Linux kernel. A local user can trigger a type confusion error and crash the kernel.

Mitigation

Update the affected package the Linux Kernel (Live Patch 35 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-livepatch-5_3_18-150300_59_118-default: before 2-150300.2.3

kernel-livepatch-5_3_18-150200_24_148-default-debuginfo: before 2-150200.2.3

kernel-livepatch-5_3_18-150200_24_148-default: before 2-150200.2.3

kernel-livepatch-SLE15-SP2_Update_35-debugsource: before 2-150200.2.3

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232401-1/


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.



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