SUSE update for the Linux Kernel (Live Patch 45 for SLE 12 SP5)



| Updated: 2024-05-31
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2023-1829
CVE-2023-3609
CVE-2023-3776
CVE-2023-3812
CWE-ID CWE-416
CWE-787
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 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_14-122_144-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_147-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_153-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_133-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_150-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_139-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_156-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_159-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_136-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_165-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-122_162-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: #VU75448

Risk: Low

CVSSv4.0: 7.1 [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:P/U:Clear]

CVE-ID: CVE-2023-1829

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

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 tcindex_delete() function. A local user can trigger a use-after-free error and execute arbitrary code with root privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 45 for SLE 12 SP5) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

SUSE Linux Enterprise Live Patching: 12-SP5

kgraft-patch-4_12_14-122_144-default: before 9-2.2

kgraft-patch-4_12_14-122_147-default: before 8-2.2

kgraft-patch-4_12_14-122_153-default: before 6-2.1

kgraft-patch-4_12_14-122_133-default: before 12-2.2

kgraft-patch-4_12_14-122_150-default: before 8-2.2

kgraft-patch-4_12_14-122_139-default: before 10-2.2

kgraft-patch-4_12_14-122_156-default: before 6-2.1

kgraft-patch-4_12_14-122_159-default: before 5-2.1

kgraft-patch-4_12_14-122_136-default: before 11-2.2

kgraft-patch-4_12_14-122_165-default: before 3-2.1

kgraft-patch-4_12_14-122_162-default: before 4-2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233749-1/


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.

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

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 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.

Mitigation

Update the affected package the Linux Kernel (Live Patch 45 for SLE 12 SP5) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

SUSE Linux Enterprise Live Patching: 12-SP5

kgraft-patch-4_12_14-122_144-default: before 9-2.2

kgraft-patch-4_12_14-122_147-default: before 8-2.2

kgraft-patch-4_12_14-122_153-default: before 6-2.1

kgraft-patch-4_12_14-122_133-default: before 12-2.2

kgraft-patch-4_12_14-122_150-default: before 8-2.2

kgraft-patch-4_12_14-122_139-default: before 10-2.2

kgraft-patch-4_12_14-122_156-default: before 6-2.1

kgraft-patch-4_12_14-122_159-default: before 5-2.1

kgraft-patch-4_12_14-122_136-default: before 11-2.2

kgraft-patch-4_12_14-122_165-default: before 3-2.1

kgraft-patch-4_12_14-122_162-default: before 4-2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233749-1/


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

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 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.

Mitigation

Update the affected package the Linux Kernel (Live Patch 45 for SLE 12 SP5) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

SUSE Linux Enterprise Live Patching: 12-SP5

kgraft-patch-4_12_14-122_144-default: before 9-2.2

kgraft-patch-4_12_14-122_147-default: before 8-2.2

kgraft-patch-4_12_14-122_153-default: before 6-2.1

kgraft-patch-4_12_14-122_133-default: before 12-2.2

kgraft-patch-4_12_14-122_150-default: before 8-2.2

kgraft-patch-4_12_14-122_139-default: before 10-2.2

kgraft-patch-4_12_14-122_156-default: before 6-2.1

kgraft-patch-4_12_14-122_159-default: before 5-2.1

kgraft-patch-4_12_14-122_136-default: before 11-2.2

kgraft-patch-4_12_14-122_165-default: before 3-2.1

kgraft-patch-4_12_14-122_162-default: before 4-2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233749-1/


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) Out-of-bounds write

EUVDB-ID: #VU78928

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-2023-3812

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 TUN/TAP device driver in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 45 for SLE 12 SP5) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

SUSE Linux Enterprise Live Patching: 12-SP5

kgraft-patch-4_12_14-122_144-default: before 9-2.2

kgraft-patch-4_12_14-122_147-default: before 8-2.2

kgraft-patch-4_12_14-122_153-default: before 6-2.1

kgraft-patch-4_12_14-122_133-default: before 12-2.2

kgraft-patch-4_12_14-122_150-default: before 8-2.2

kgraft-patch-4_12_14-122_139-default: before 10-2.2

kgraft-patch-4_12_14-122_156-default: before 6-2.1

kgraft-patch-4_12_14-122_159-default: before 5-2.1

kgraft-patch-4_12_14-122_136-default: before 11-2.2

kgraft-patch-4_12_14-122_165-default: before 3-2.1

kgraft-patch-4_12_14-122_162-default: before 4-2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233749-1/


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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