SUSE update for the Linux Kernel

Published: 2022-10-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2022-20008 CVE-2022-2503 CVE-2022-2663 CVE-2022-3239 CVE-2022-3303 CVE-2022-39188 CVE-2022-41218 CVE-2022-41848
CWE-ID	CWE-908 CWE-264 CWE-20 CWE-416 CWE-476 CWE-362
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #7 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise High Availability Operating systems & Components / Operating system SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Workstation Extension Operating systems & Components / Operating system SUSE Linux Enterprise Desktop Operating systems & Components / Operating system SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system ocfs2-kmp-default-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-default Operating systems & Components / Operating system package or component gfs2-kmp-default-debuginfo Operating systems & Components / Operating system package or component gfs2-kmp-default Operating systems & Components / Operating system package or component dlm-kmp-default-debuginfo Operating systems & Components / Operating system package or component dlm-kmp-default Operating systems & Components / Operating system package or component cluster-md-kmp-default-debuginfo Operating systems & Components / Operating system package or component cluster-md-kmp-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 kernel-default-kgraft-devel Operating systems & Components / Operating system package or component kernel-default-kgraft Operating systems & Components / Operating system package or component kernel-default-man Operating systems & Components / Operating system package or component kernel-default-devel-debuginfo Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component kernel-macros Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component kernel-syms Operating systems & Components / Operating system package or component kernel-default-devel Operating systems & Components / Operating system package or component kernel-default-base-debuginfo Operating systems & Components / Operating system package or component kernel-default-base Operating systems & Components / Operating system package or component kernel-default Operating systems & Components / Operating system package or component kernel-docs Operating systems & Components / Operating system package or component kernel-obs-build-debugsource Operating systems & Components / Operating system package or component kernel-obs-build Operating systems & Components / Operating system package or component kernel-default-extra-debuginfo Operating systems & Components / Operating system package or component kernel-default-extra Operating systems & Components / Operating system package or component kernel-default-debugsource Operating systems & Components / Operating system package or component kernel-default-debuginfo Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Use of uninitialized resource

EUVDB-ID: #VU63352

Risk: Low

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20008

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a local application to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources within the mmc_blk_read_single() function in block.c. A local application can obtain potentially sensitive information from memory when reading from an SD card that triggers errors.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66810

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2503

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the way dm-verity is used to restrict module/firmware loads to trusted root filesystem in LoadPin builds. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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) Input validation error

EUVDB-ID: #VU67510

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2663

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass firewall rules.

The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

4) Use-after-free

EUVDB-ID: #VU68337

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-2022-3239

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 Linux kernel video4linux driver in the way user triggers em28xx_usb_probe() for the Empia 28xx based TV cards. 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 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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) NULL pointer dereference

EUVDB-ID: #VU68338

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3303

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel sound subsystem due to improper locking when handling the SNDCTL_DSP_SYNC ioctl. A privileged local user can trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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.

6) Race condition

EUVDB-ID: #VU67478

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-2022-39188

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition within include/asm-generic/tlb.h in the Linux kernel. A local user can exploit the race and escalate privileges on the system.

Note, this only occurs in situations with VM_PFNMAP VMAs.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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.

7) Use-after-free

EUVDB-ID: #VU67657

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-2022-41218

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 dvb_demux_open() and dvb_dmxdev_release() function in drivers/media/dvb-core/dmxdev.c in Linux kernel. 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 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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.

8) Race condition

EUVDB-ID: #VU68339

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41848

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in the drivers/char/pcmcia/synclink_cs.c in the Linux kernel. An attacker with physical proximity to the affected system can remove a PCMCIA device while calling ioctl, cause a race condition between mgslpc_ioctl and mgslpc_detach and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise High Performance Computing: 12-SP5

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

ocfs2-kmp-default: before 4.12.14-122.136.1

gfs2-kmp-default-debuginfo: before 4.12.14-122.136.1

gfs2-kmp-default: before 4.12.14-122.136.1

dlm-kmp-default-debuginfo: before 4.12.14-122.136.1

dlm-kmp-default: before 4.12.14-122.136.1

cluster-md-kmp-default-debuginfo: before 4.12.14-122.136.1

cluster-md-kmp-default: before 4.12.14-122.136.1

kgraft-patch-4_12_14-122_136-default: before 1-8.3.1

kernel-default-kgraft-devel: before 4.12.14-122.136.1

kernel-default-kgraft: before 4.12.14-122.136.1

kernel-default-man: before 4.12.14-122.136.1

kernel-default-devel-debuginfo: before 4.12.14-122.136.1

kernel-source: before 4.12.14-122.136.1

kernel-macros: before 4.12.14-122.136.1

kernel-devel: before 4.12.14-122.136.1

kernel-syms: before 4.12.14-122.136.1

kernel-default-devel: before 4.12.14-122.136.1

kernel-default-base-debuginfo: before 4.12.14-122.136.1

kernel-default-base: before 4.12.14-122.136.1

kernel-default: before 4.12.14-122.136.1

kernel-docs: before 4.12.14-122.136.1

kernel-obs-build-debugsource: before 4.12.14-122.136.1

kernel-obs-build: before 4.12.14-122.136.1

kernel-default-extra-debuginfo: before 4.12.14-122.136.1

kernel-default-extra: before 4.12.14-122.136.1

kernel-default-debugsource: before 4.12.14-122.136.1

kernel-default-debuginfo: before 4.12.14-122.136.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223587-1/

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.