SUSE update for the Linux Kernel

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 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-source-azure: before 5.14.21-150400.14.10.1

kernel-devel-azure: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure: before 5.14.21-150400.14.10.1

kselftests-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

kselftests-kmp-azure: before 5.14.21-150400.14.10.1

kernel-syms-azure: before 5.14.21-150400.14.10.1

kernel-azure-optional-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-optional: before 5.14.21-150400.14.10.1

kernel-azure-livepatch-devel: before 5.14.21-150400.14.10.1

kernel-azure-extra-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-extra: before 5.14.21-150400.14.10.1

kernel-azure-devel-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-devel: before 5.14.21-150400.14.10.1

kernel-azure-debugsource: before 5.14.21-150400.14.10.1

kernel-azure-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure: before 5.14.21-150400.14.10.1

gfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

gfs2-kmp-azure: before 5.14.21-150400.14.10.1

dlm-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

dlm-kmp-azure: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure: before 5.14.21-150400.14.10.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222722-1/

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) Out-of-bounds read

EUVDB-ID: #VU66591

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1462

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the the Linux kernel’s TeleTYpe subsystem caused by a race condition when using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory file. A local user can trigger an out-of-bounds read error and crash the system or read random kernel memory.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-source-azure: before 5.14.21-150400.14.10.1

kernel-devel-azure: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure: before 5.14.21-150400.14.10.1

kselftests-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

kselftests-kmp-azure: before 5.14.21-150400.14.10.1

kernel-syms-azure: before 5.14.21-150400.14.10.1

kernel-azure-optional-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-optional: before 5.14.21-150400.14.10.1

kernel-azure-livepatch-devel: before 5.14.21-150400.14.10.1

kernel-azure-extra-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-extra: before 5.14.21-150400.14.10.1

kernel-azure-devel-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-devel: before 5.14.21-150400.14.10.1

kernel-azure-debugsource: before 5.14.21-150400.14.10.1

kernel-azure-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure: before 5.14.21-150400.14.10.1

gfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

gfs2-kmp-azure: before 5.14.21-150400.14.10.1

dlm-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

dlm-kmp-azure: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure: before 5.14.21-150400.14.10.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222722-1/

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) Security features bypass

EUVDB-ID: #VU66592

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21505

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows an attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect implementation of the IMA lockdown feature. If IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine with Secure Boot. An attacker with physical access to device can bypass Secure Boot mechanism.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-source-azure: before 5.14.21-150400.14.10.1

kernel-devel-azure: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure: before 5.14.21-150400.14.10.1

kselftests-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

kselftests-kmp-azure: before 5.14.21-150400.14.10.1

kernel-syms-azure: before 5.14.21-150400.14.10.1

kernel-azure-optional-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-optional: before 5.14.21-150400.14.10.1

kernel-azure-livepatch-devel: before 5.14.21-150400.14.10.1

kernel-azure-extra-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-extra: before 5.14.21-150400.14.10.1

kernel-azure-devel-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-devel: before 5.14.21-150400.14.10.1

kernel-azure-debugsource: before 5.14.21-150400.14.10.1

kernel-azure-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure: before 5.14.21-150400.14.10.1

gfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

gfs2-kmp-azure: before 5.14.21-150400.14.10.1

dlm-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

dlm-kmp-azure: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure: before 5.14.21-150400.14.10.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222722-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Improper update of reference count

EUVDB-ID: #VU63496

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-2022-29581

CWE-ID: CWE-911 - Improper Update of Reference Count

Exploit availability: No

Description

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

The vulnerability exists due to improper update of reference count in net/sched in Linux kernel. A local user can execute arbitrary code with root privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-source-azure: before 5.14.21-150400.14.10.1

kernel-devel-azure: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure: before 5.14.21-150400.14.10.1

kselftests-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

kselftests-kmp-azure: before 5.14.21-150400.14.10.1

kernel-syms-azure: before 5.14.21-150400.14.10.1

kernel-azure-optional-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-optional: before 5.14.21-150400.14.10.1

kernel-azure-livepatch-devel: before 5.14.21-150400.14.10.1

kernel-azure-extra-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-extra: before 5.14.21-150400.14.10.1

kernel-azure-devel-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-devel: before 5.14.21-150400.14.10.1

kernel-azure-debugsource: before 5.14.21-150400.14.10.1

kernel-azure-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure: before 5.14.21-150400.14.10.1

gfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

gfs2-kmp-azure: before 5.14.21-150400.14.10.1

dlm-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

dlm-kmp-azure: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure: before 5.14.21-150400.14.10.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222722-1/

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.

5) Use-after-free

EUVDB-ID: #VU64668

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-32250

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 incorrect NFT_STATEFUL_EXPR in net/netfilter/nf_tables_api.c in Linux kernel. A local user with ability to create user/net namespaces can execute arbitrary code with root privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-source-azure: before 5.14.21-150400.14.10.1

kernel-devel-azure: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

reiserfs-kmp-azure: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

ocfs2-kmp-azure: before 5.14.21-150400.14.10.1

kselftests-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

kselftests-kmp-azure: before 5.14.21-150400.14.10.1

kernel-syms-azure: before 5.14.21-150400.14.10.1

kernel-azure-optional-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-optional: before 5.14.21-150400.14.10.1

kernel-azure-livepatch-devel: before 5.14.21-150400.14.10.1

kernel-azure-extra-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-extra: before 5.14.21-150400.14.10.1

kernel-azure-devel-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure-devel: before 5.14.21-150400.14.10.1

kernel-azure-debugsource: before 5.14.21-150400.14.10.1

kernel-azure-debuginfo: before 5.14.21-150400.14.10.1

kernel-azure: before 5.14.21-150400.14.10.1

gfs2-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

gfs2-kmp-azure: before 5.14.21-150400.14.10.1

dlm-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

dlm-kmp-azure: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure-debuginfo: before 5.14.21-150400.14.10.1

cluster-md-kmp-azure: before 5.14.21-150400.14.10.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20222722-1/

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.