SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2879-1)

high Nessus Plugin ID 143671

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Synopsis

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

Description

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-26088: Fixed an improper CAP_NET_RAW check in NFC socket creation could have been used by local attackers to create raw sockets, bypassing security mechanisms (bsc#1176990).

CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory corruption or a denial of service when changing screen size (bnc#1176235).

CVE-2020-0432: Fixed an out of bounds write due to an integer overflow (bsc#1176721).

CVE-2020-0427: Fixed an out of bounds read due to a use after free (bsc#1176725).

CVE-2020-0431: Fixed an out of bounds write due to a missing bounds check (bsc#1176722).

CVE-2020-0404: Fixed a linked list corruption due to an unusual root cause (bsc#1176423).

CVE-2020-2521: Fixed getxattr kernel panic and memory overflow (bsc#1176381).

CVE-2020-25284: Fixed an incomplete permission checking for access to rbd devices, which could have been leveraged by local attackers to map or unmap rbd block devices (bsc#1176482).

CVE-2020-14385: Fixed a failure of the file system metadata validator in XFS which could have caused an inode with a valid, user-creatable extended attribute to be flagged as corrupt (bsc#1176137).

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 Workstation Extension 15-SP2 :

zypper in -t patch SUSE-SLE-Product-WE-15-SP2-2020-2879=1

SUSE Linux Enterprise Module for Live Patching 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2020-2879=1

SUSE Linux Enterprise Module for Legacy Software 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP2-2020-2879=1

SUSE Linux Enterprise Module for Development Tools 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP2-2020-2879=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-2879=1

SUSE Linux Enterprise High Availability 15-SP2 :

zypper in -t patch SUSE-SLE-Product-HA-15-SP2-2020-2879=1

Plugin Details

Severity: High

ID: 143671

File Name: suse_SU-2020-2879-1.nasl

Version: 1.5

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 12/9/2020

Updated: 5/11/2022

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: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-14390

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

CVSS Score Source: CVE-2020-0432

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-preempt-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-preempt, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-preempt-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-preempt-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-obs-build-debugsource, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-preempt-devel, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default, cpe:/o:novell:suse_linux:15

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: 10/8/2020

Vulnerability Publication Date: 9/13/2020

Reference Information

CVE: CVE-2020-0404, CVE-2020-0427, CVE-2020-0431, CVE-2020-0432, CVE-2020-14385, CVE-2020-14390, CVE-2020-2521, CVE-2020-25284, CVE-2020-26088

Detections

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