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SUSE SLES12 Security Update : kernel (Live Patch 43 for SLE 12 SP3) (SUSE-SU-2022:1003-1)

medium Nessus Plugin ID 159333

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2022:1003-1 advisory.

 - The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable.
 XSA-365 was classified to affect versions back to at least 3.11. (CVE-2021-28688)

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

Solution

Update the affected kgraft-patch-4_4_180-94_156-default package.

See Also

https://bugzilla.suse.com/1182294

https://www.suse.com/security/cve/CVE-2021-28688

http://www.nessus.org/u?e3d6fba3

Plugin Details

Severity: Medium

ID: 159333

File Name: suse_SU-2022-1003-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 3/30/2022

Updated: 7/14/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-28688

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_180-94_156-default

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/29/2022

Vulnerability Publication Date: 4/6/2021

Reference Information

CVE: CVE-2021-28688

SuSE: SUSE-SU-2022:1003-1