SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2119-1)

critical Nessus Plugin ID 139361

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Synopsis

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

Description

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

The following security bugs were fixed :

CVE-2020-15780: A lockdown bypass for loading unsigned modules using ACPI table injection was fixed. (bsc#1173573)

CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).

CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).

CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).

CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free.
This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-0305: Fixed a possible use-after-free due to a race condition incdev_get of char_dev.c. This could lead to local escalation of privilege. User interaction is not needed for exploitation (bnc#1174462).

CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).

CVE-2020-10781: Fixed a denial of service issue in the ZRAM implementation (bnc#1173074).

CVE-2019-20908: Fixed incorrect access permissions for the efivar_ssdt ACPI variable, which could be used by attackers to bypass lockdown or secure boot restrictions (bnc#1173567).

CVE-2019-16746: Fixed a buffer overflow in net/wireless/nl80211.c, related to invalid length checks for variable elements in a beacon head (bnc#1152107).

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-14331: Fixed a buffer over write in vgacon_scrollback_update() (bnc#1174205).

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-SP5-2020-2119=1

Plugin Details

Severity: Critical

ID: 139361

File Name: suse_SU-2020-2119-1.nasl

Version: 1.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 8/6/2020

Updated: 2/26/2024

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: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-16746

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

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

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: 8/4/2020

Vulnerability Publication Date: 9/24/2019

Reference Information

CVE: CVE-2019-16746, CVE-2019-20908, CVE-2020-0305, CVE-2020-10135, CVE-2020-10769, CVE-2020-10773, CVE-2020-10781, CVE-2020-12771, CVE-2020-12888, CVE-2020-14331, CVE-2020-14416, CVE-2020-15393, CVE-2020-15780

Detections

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