SUSE SLES15 Security Update : kernel (Live Patch 31 for SLE 15) (SUSE-SU-2022:4027-1)

medium Nessus Plugin ID 167773

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4027-1 advisory.

- A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free. (CVE-2020-36557)

- A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault. (CVE-2020-36558)

- When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)

- kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)

- mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.
(CVE-2022-42703)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel-livepatch-4_12_14-150000_150_95-default package.

See Also

https://bugzilla.suse.com/1201742

https://bugzilla.suse.com/1201752

https://bugzilla.suse.com/1202087

https://bugzilla.suse.com/1203613

https://bugzilla.suse.com/1204170

https://www.suse.com/security/cve/CVE-2020-36557

https://www.suse.com/security/cve/CVE-2020-36558

https://www.suse.com/security/cve/CVE-2021-33655

https://www.suse.com/security/cve/CVE-2022-2588

https://www.suse.com/security/cve/CVE-2022-42703

http://www.nessus.org/u?7e696396

Plugin Details

Severity: Medium

ID: 167773

File Name: suse_SU-2022-4027-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 11/17/2022

Updated: 7/13/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2021-33655

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6.4

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-150000_150_95-default, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/16/2022

Vulnerability Publication Date: 7/18/2022

Exploitable With

Core Impact

Reference Information

CVE: CVE-2020-36557, CVE-2020-36558, CVE-2021-33655, CVE-2022-2588, CVE-2022-42703

SuSE: SUSE-SU-2022:4027-1