SUSE update for the Linux Kernel (Live Patch 30 for SLE 12 SP5)



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-3424
CVE-2022-3565
CWE-ID CWE-416
CWE-119
Exploitation vector Local
Public exploit N/A
Vulnerable software
SUSE Linux Enterprise Live Patching
Operating systems & Components / Operating system

kgraft-patch-4_12_14-95_96-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_116-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: #VU69759

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-2022-3424

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 gru_set_context_option(), gru_fault() and gru_handle_user_call_os() functions 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 (Live Patch 30 for SLE 12 SP5) to the latest version.

Vulnerable software versions

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

kgraft-patch-4_12_14-95_96-default: before 11-2.2

kgraft-patch-4_12_14-122_133-default: before 4-2.1

kgraft-patch-4_12_14-122_116-default: before 11-2.2

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20230263-1/


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) Buffer overflow

EUVDB-ID: #VU69709

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3565

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows an attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the del_timer() function in drivers/isdn/mISDN/l1oip_core.c in the Bluetooth component. An attacker with physical proximity to device can trigger memory corruption and execute arbitrary code on the target system.


Mitigation

Update the affected package the Linux Kernel (Live Patch 30 for SLE 12 SP5) to the latest version.

Vulnerable software versions

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

kgraft-patch-4_12_14-95_96-default: before 11-2.2

kgraft-patch-4_12_14-122_133-default: before 4-2.1

kgraft-patch-4_12_14-122_116-default: before 11-2.2

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20230263-1/


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.



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