SUSE update for the Linux Kernel (Live Patch 31 for SLE 15 SP1)

Published: 2022-11-20 | Updated: 2024-03-20

Risk	Low
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2021-33655 CVE-2022-2588 CVE-2022-42703
CWE-ID	CWE-787 CWE-415 CWE-416
Exploitation vector	Local
Public exploit	Vulnerability #2 is being exploited in the wild. Public exploit code for vulnerability #3 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 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 kgraft-patch-4_12_14-95_96-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-95_93-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-95_88-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-95_83-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_98-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_124-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_121-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_116-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_113-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_110-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_106-default Operating systems & Components / Operating system package or component kgraft-patch-4_12_14-122_103-default Operating systems & Components / Operating system package or component kernel-livepatch-4_12_14-197_108-default Operating systems & Components / Operating system package or component kernel-livepatch-4_12_14-197_105-default Operating systems & Components / Operating system package or component kernel-livepatch-4_12_14-197_102-default Operating systems & Components / Operating system package or component kernel-livepatch-4_12_14-150100_197_114-default Operating systems & Components / Operating system package or component kernel-livepatch-4_12_14-150100_197_111-default Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_25-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_27-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_26-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_24-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_23-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_22-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_21-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_99-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_99-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_96-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_96-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_93-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_93-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_107-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_107-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_102-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_102-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_115-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_115-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_112-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_112-default Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU65833

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-2021-33655

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 in FBIOPUT_VSCREENINFO IOCTL. A local user can trigger an out-of-bounds write error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 31 for SLE 15 SP1) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications: 15-SP1 - 15-SP2

SUSE Linux Enterprise Server: 15-SP1 - 15-SP2

SUSE Linux Enterprise Module for Live Patching: 15-SP1 - 15-SP2

SUSE Linux Enterprise High Performance Computing: 15-SP1 - 15-SP2

SUSE Linux Enterprise Live Patching: 12-SP4 - 12-SP5

kgraft-patch-4_12_14-95_99-default: before 6-2.1

kgraft-patch-4_12_14-95_96-default: before 9-2.2

kgraft-patch-4_12_14-95_93-default: before 10-2.2

kgraft-patch-4_12_14-95_88-default: before 11-2.2

kgraft-patch-4_12_14-95_83-default: before 15-2.2

kgraft-patch-4_12_14-122_98-default: before 16-2.2

kgraft-patch-4_12_14-122_124-default: before 6-2.1

kgraft-patch-4_12_14-122_121-default: before 7-2.2

kgraft-patch-4_12_14-122_116-default: before 9-2.2

kgraft-patch-4_12_14-122_113-default: before 11-2.2

kgraft-patch-4_12_14-122_110-default: before 12-2.2

kgraft-patch-4_12_14-122_106-default: before 14-2.2

kgraft-patch-4_12_14-122_103-default: before 16-2.2

kernel-livepatch-4_12_14-197_108-default: before 10-150100.2.2

kernel-livepatch-4_12_14-197_105-default: before 11-150100.2.2

kernel-livepatch-4_12_14-197_102-default: before 15-150100.2.2

kernel-livepatch-4_12_14-150100_197_114-default: before 6-150100.2.1

kernel-livepatch-4_12_14-150100_197_111-default: before 9-150100.2.2

kernel-livepatch-SLE15-SP2_Update_25-debugsource: before 14-150200.2.2

kernel-livepatch-SLE15-SP2_Update_27-debugsource: before 8-150200.2.1

kernel-livepatch-SLE15-SP2_Update_26-debugsource: before 10-150200.2.2

kernel-livepatch-SLE15-SP2_Update_24-debugsource: before 15-150200.2.2

kernel-livepatch-SLE15-SP2_Update_23-debugsource: before 16-150200.2.2

kernel-livepatch-SLE15-SP2_Update_22-debugsource: before 17-150200.2.2

kernel-livepatch-SLE15-SP2_Update_21-debugsource: before 18-150200.2.2

kernel-livepatch-5_3_18-24_99-default-debuginfo: before 16-150200.2.2

kernel-livepatch-5_3_18-24_99-default: before 16-150200.2.2

kernel-livepatch-5_3_18-24_96-default-debuginfo: before 17-150200.2.2

kernel-livepatch-5_3_18-24_96-default: before 17-150200.2.2

kernel-livepatch-5_3_18-24_93-default-debuginfo: before 18-150200.2.2

kernel-livepatch-5_3_18-24_93-default: before 18-150200.2.2

kernel-livepatch-5_3_18-24_107-default-debuginfo: before 14-150200.2.2

kernel-livepatch-5_3_18-24_107-default: before 14-150200.2.2

kernel-livepatch-5_3_18-24_102-default-debuginfo: before 15-150200.2.2

kernel-livepatch-5_3_18-24_102-default: before 15-150200.2.2

kernel-livepatch-5_3_18-150200_24_115-default-debuginfo: before 8-150200.2.1

kernel-livepatch-5_3_18-150200_24_115-default: before 8-150200.2.1

kernel-livepatch-5_3_18-150200_24_112-default-debuginfo: before 10-150200.2.2

kernel-livepatch-5_3_18-150200_24_112-default: before 10-150200.2.2

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224112-1/

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) Double Free

EUVDB-ID: #VU66397

Risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-2588

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a double free error within the network packet scheduler implementation in the route4_change() function in Linux kernel when removing all references to a route filter before freeing it. A local user can run a specially crafted program to crash the kernel or execute arbitrary code.