SUSE SLES12: kernel-default / kernel-default-base / kernel-default-devel / etc (SUSE-SU-2022:2721-1)

high Nessus Plugin ID 163994

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Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2721-1 advisory.

The SUSE Linux Enterprise 12 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

- CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940).
- CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598).
- CVE-2020-15393: Fixed a memory leak in the usbtest driver which could lead to denial of service (bnc#1173514).
- CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
- CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs could lead to a use-after-free (bnc#1201429).
- CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
- CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
- CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829).
- CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
- CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251).
- CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use- after-free (bnc#1196973).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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 packages.

Plugin Details

Severity: High

ID: 163994

File Name: suse_SU-2022-2721-1.nasl

Version: 1.7

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 8/10/2022

Updated: 6/25/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.39

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-39713

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

CVSS Score Source: CVE-2022-33742

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-macros

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: 8/9/2022

Vulnerability Publication Date: 6/29/2020

Reference Information

CVE: CVE-2020-15393, CVE-2020-36557, CVE-2020-36558, CVE-2021-33655, CVE-2021-33656, CVE-2021-39713, CVE-2022-1462, CVE-2022-20166, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, CVE-2022-36946

SuSE: SUSE-SU-2022:2721-1

Detections

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