SUSE update for the Linux Kernel (Live Patch 40 for SLE 12 SP3)

Published: 2022-06-15

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-1048 CVE-2022-30594
CWE-ID	CWE-416 CWE-276
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system kgraft-patch-4_12_14-95_93-default Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_156-default-debuginfo Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_156-default Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_153-default-debuginfo Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_153-default Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_150-default-debuginfo Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_150-default Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_147-default-debuginfo Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_147-default Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU63428

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-2022-1048

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to a use-after-free error in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. A local user can execute arbitrary code with elevated privileges and perform a denial-of-service attack.

Mitigation

Update the affected package the Linux Kernel (Live Patch 40 for SLE 12 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 12-SP4

SUSE Linux Enterprise Server for SAP: 12-SP3

SUSE Linux Enterprise Server: 12-SP3-LTSS

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

kgraft-patch-4_4_180-94_156-default-debuginfo: before 4-2.2

kgraft-patch-4_4_180-94_156-default: before 4-2.2

kgraft-patch-4_4_180-94_153-default-debuginfo: before 5-2.2

kgraft-patch-4_4_180-94_153-default: before 5-2.2

kgraft-patch-4_4_180-94_150-default-debuginfo: before 9-2.2

kgraft-patch-4_4_180-94_150-default: before 9-2.2

kgraft-patch-4_4_180-94_147-default-debuginfo: before 13-2.2

kgraft-patch-4_4_180-94_147-default: before 13-2.2

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222006-1/

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) Incorrect default permissions

EUVDB-ID: #VU63631