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Test ID:1.3.6.1.4.1.25623.1.1.4.2020.2103.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2020:2103-1)
Summary:The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2103-1 advisory.
Description:Summary:
The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2103-1 advisory.

Vulnerability Insight:
The SUSE Linux Enterprise 15 SP1 Azure kernel was updated to receive various security and bugfixes.


The following security bugs were fixed:

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-2020-10768: Fixed an issue with the prctl() function, where indirect
branch speculation could be enabled even though it was diabled before
(bnc#1172783).

CVE-2020-10766: Fixed an issue which allowed an attacker with a local
account to disable SSBD protection (bnc#1172781).

CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier
was disabled in certain circumstances, leaving the system open to a
spectre v2 style attack (bnc#1172782).

CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c,
if k_ascii is called several times in a row (bnc#1172775).

CVE-2019-20810: Fixed a memory leak in go7007_snd_init in
drivers/media/usb/go7007/snd-go7007.c because it did not call
snd_card_free for a failure path (bnc#1172458).

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 (bsc#1173074).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible
use-after-free due to a race condition. This could lead to local
escalation of privilege with System execution privileges needed. User
interaction is not needed for exploitation (bsc#1174462).

CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c:
incorrect access permissions for the efivar_ssdt ACPI variable could be
used by attackers to bypass lockdown or secure boot restrictions, aka
CID-1957a85b0032 (bsc#1173567).

CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c:
injection of malicious ACPI tables via configfs could be used by
attackers to bypass lockdown and secure boot restrictions, aka
CID-75b0cea7bf30 (bsc#1173573).

The following non-security bugs were fixed:

ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).

ACPI: GED: use correct trigger type field in _Exx / _Lxx handling
(bsc#1111666).

ACPI: NFIT: Fix unlock on error in scrub_sh... [Please see the references for more information on the vulnerabilities]

Affected Software/OS:
'Linux Kernel' package(s) on SUSE Linux Enterprise Module for Public Cloud 15-SP1

Solution:
Please install the updated package(s).

CVSS Score:
7.2

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-0305
https://source.android.com/security/bulletin/pixel/2020-06-01
SuSE Security Announcement: openSUSE-SU-2020:1153 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
SuSE Security Announcement: openSUSE-SU-2020:1236 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html
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