SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0688-1)

high Nessus Plugin ID 134624

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Synopsis

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

Description

The SUSE Linux Enterprise 15-SP1 kernel-RT was updated to 4.12.14 to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-8992: Fixed an issue in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bsc#1164069).

CVE-2020-8648: Fixed a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

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 Module for Realtime 15-SP1:zypper in -t patch SUSE-SLE-Module-RT-15-SP1-2020-688=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-688=1

Plugin Details

Severity: High

ID: 134624

File Name: suse_SU-2020-0688-1.nasl

Version: 1.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/16/2020

Updated: 3/21/2024

Supported Sensors: Agentless 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: Low

Base Score: 3.6

Temporal Score: 2.8

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

CVSS Score Source: CVE-2020-8648

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt, p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt_debug, p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:dlm-kmp-rt, p-cpe:/a:novell:suse_linux:dlm-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:dlm-kmp-rt_debug, p-cpe:/a:novell:suse_linux:dlm-kmp-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:gfs2-kmp-rt, p-cpe:/a:novell:suse_linux:gfs2-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:gfs2-kmp-rt_debug, p-cpe:/a:novell:suse_linux:gfs2-kmp-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt, p-cpe:/a:novell:suse_linux:kernel-rt-base, p-cpe:/a:novell:suse_linux:kernel-rt-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt-debugsource, p-cpe:/a:novell:suse_linux:kernel-rt-devel, p-cpe:/a:novell:suse_linux:kernel-rt-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt-extra, p-cpe:/a:novell:suse_linux:kernel-rt-extra-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-rt_debug, p-cpe:/a:novell:suse_linux:kernel-rt_debug-base, p-cpe:/a:novell:suse_linux:kernel-rt_debug-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt_debug-debugsource, p-cpe:/a:novell:suse_linux:kernel-rt_debug-devel, p-cpe:/a:novell:suse_linux:kernel-rt_debug-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt_debug-extra, p-cpe:/a:novell:suse_linux:kernel-rt_debug-extra-debuginfo, p-cpe:/a:novell:suse_linux:kernel-rt_debug-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-syms-rt, p-cpe:/a:novell:suse_linux:kselftests-kmp-rt, p-cpe:/a:novell:suse_linux:kselftests-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:kselftests-kmp-rt_debug, p-cpe:/a:novell:suse_linux:kselftests-kmp-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt, p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt_debug, p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt_debug-debuginfo, p-cpe:/a:novell:suse_linux:reiserfs-kmp-rt, p-cpe:/a:novell:suse_linux:reiserfs-kmp-rt-debuginfo, p-cpe:/a:novell:suse_linux:reiserfs-kmp-rt_debug, p-cpe:/a:novell:suse_linux:reiserfs-kmp-rt_debug-debuginfo, 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: 3/13/2020

Vulnerability Publication Date: 2/6/2020

Reference Information

CVE: CVE-2020-2732, CVE-2020-8648, CVE-2020-8992

Detections

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