SUSE update for the Linux Kernel (Live Patch 27 for SLE 12 SP4)



Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2023-1989
CVE-2023-2162
CVE-2023-23454
CVE-2023-28464
CWE-ID CWE-416
CWE-843
CWE-415
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		SUSE Linux Enterprise Server for SAP Applications 12
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 12
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 12
Operating systems & Components / Operating system

SUSE Linux Enterprise Live Patching
Operating systems & Components / Operating system

kgraft-patch-4_12_14-95_99-default
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: #VU75452

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-2023-1989

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 27 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP4

SUSE Linux Enterprise Server 12: SP4

SUSE Linux Enterprise High Performance Computing 12: SP4

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_99-default: before 12-2.2

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232422-1/


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: #VU75994

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

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 27 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP4

SUSE Linux Enterprise Server 12: SP4

SUSE Linux Enterprise High Performance Computing 12: SP4

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_99-default: before 12-2.2

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232422-1/


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) Type Confusion

EUVDB-ID: #VU71478

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-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 27 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP4

SUSE Linux Enterprise Server 12: SP4

SUSE Linux Enterprise High Performance Computing 12: SP4

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_99-default: before 12-2.2

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232422-1/


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) Double Free

EUVDB-ID: #VU74147

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-2023-28464

CWE-ID: CWE-415 - Double Free

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 hci_conn_cleanup() function in net/bluetooth/hci_conn.c in Linux kernel. A local user can trigger a double free error and execute arbitrary code with elevated privileges.


Mitigation

Update the affected package the Linux Kernel (Live Patch 27 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP4

SUSE Linux Enterprise Server 12: SP4

SUSE Linux Enterprise High Performance Computing 12: SP4

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_99-default: before 12-2.2

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232422-1/


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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