SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 22 for SLE 12 SP4) (SUSE-SU-2021:4038-1)

high Nessus Plugin ID 156084

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Synopsis

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

Description

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:4038-1 advisory.

- In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References:
Upstream kernel (CVE-2021-0941)

- A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. (CVE-2021-20322)

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_14-150_75-default, kernel-livepatch-4_12_14-197_99-default, kgraft- patch-4_12_14-122_91-default and / or kgraft-patch-4_12_14-95_80-default packages.

Plugin Details

Severity: High

ID: 156084

File Name: suse_SU-2021-4038-1.nasl

Version: 1.7

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 12/15/2021

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: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-0941

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

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

CVSS Score Source: CVE-2021-20322

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-150_75-default, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-95_80-default, p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-197_99-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_91-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: 12/14/2021

Vulnerability Publication Date: 10/25/2021

Reference Information

CVE: CVE-2021-0941, CVE-2021-20322

SuSE: SUSE-SU-2021:4038-1

Detections

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