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Test ID:
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2020:2107-1)
Summary:The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2107-1 advisory.
The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2107-1 advisory.

Vulnerability Insight:
The SUSE Linux Enterprise 15 SP1 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

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

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

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-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-2019-20810: 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-2019-16746: Fixed a buffer overflow in net/wireless/nl80211.c,
related to invalid length checks for variable elements in a beacon head

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

ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).

ACPI: PM: Avoid using power resources if there are none for... [Please see the references for more information on the vulnerabilities]

Affected Software/OS:
'Linux Kernel' package(s) on SUSE Linux Enterprise Workstation Extension 15-SP1, SUSE Linux Enterprise Module for Live Patching 15-SP1, SUSE Linux Enterprise Module for Legacy Software 15-SP1, SUSE Linux Enterprise Module for Development Tools 15-SP1, SUSE Linux Enterprise Module for Basesystem 15-SP1, SUSE Linux Enterprise High Availability 15-SP1

Please install the updated package(s).

CVSS Score:

CVSS Vector:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-0305
SuSE Security Announcement: openSUSE-SU-2020:1153 (Google Search)
SuSE Security Announcement: openSUSE-SU-2020:1236 (Google Search)
CopyrightCopyright (C) 2021 Greenbone Networks GmbH

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