SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1248-1)

high Nessus Plugin ID 148753
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673: Fixed multiple bugs in NFC subsytem (bsc#1178181).

CVE-2020-36311: Fixed a denial of service (soft lockup) by triggering destruction of a large SEV VM (bsc#1184511).

CVE-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391).

CVE-2021-30002: Fixed a memory leak for large arguments in video_usercopy (bsc#1184120).

CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).

CVE-2021-20219: Fixed a denial of service in n_tty_receive_char_special (bsc#1184397).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-1248=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1065729

https://bugzilla.suse.com/show_bug.cgi?id=1113295

https://bugzilla.suse.com/show_bug.cgi?id=1178181

https://bugzilla.suse.com/show_bug.cgi?id=1181507

https://bugzilla.suse.com/show_bug.cgi?id=1183405

https://bugzilla.suse.com/show_bug.cgi?id=1183755

https://bugzilla.suse.com/show_bug.cgi?id=1184120

https://bugzilla.suse.com/show_bug.cgi?id=1184170

https://bugzilla.suse.com/show_bug.cgi?id=1184391

https://bugzilla.suse.com/show_bug.cgi?id=1184393

https://bugzilla.suse.com/show_bug.cgi?id=1184397

https://bugzilla.suse.com/show_bug.cgi?id=1184494

https://bugzilla.suse.com/show_bug.cgi?id=1184511

https://bugzilla.suse.com/show_bug.cgi?id=1184583

https://www.suse.com/security/cve/CVE-2020-25670/

https://www.suse.com/security/cve/CVE-2020-25671/

https://www.suse.com/security/cve/CVE-2020-25672/

https://www.suse.com/security/cve/CVE-2020-25673/

https://www.suse.com/security/cve/CVE-2020-36311/

https://www.suse.com/security/cve/CVE-2021-20219/

https://www.suse.com/security/cve/CVE-2021-29154/

https://www.suse.com/security/cve/CVE-2021-30002/

https://www.suse.com/security/cve/CVE-2021-3483/

http://www.nessus.org/u?9e6692fc

Plugin Details

Severity: High

ID: 148753

File Name: suse_SU-2021-1248-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 4/19/2021

Updated: 4/21/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-azure, p-cpe:/a:novell:suse_linux:kernel-azure-base, p-cpe:/a:novell:suse_linux:kernel-azure-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-azure-debuginfo, p-cpe:/a:novell:suse_linux:kernel-azure-debugsource, p-cpe:/a:novell:suse_linux:kernel-azure-devel, p-cpe:/a:novell:suse_linux:kernel-syms-azure, cpe:/o:novell:suse_linux:12

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: 4/16/2021

Vulnerability Publication Date: 3/23/2021

Reference Information

CVE: CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673, CVE-2020-36311, CVE-2021-20219, CVE-2021-29154, CVE-2021-30002, CVE-2021-3483