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Test ID:1.3.6.1.4.1.25623.1.1.4.2020.2105.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2020:2105-1)
Summary:The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2105-1 advisory.
Description:Summary:
The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2105-1 advisory.

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


The following security bugs were fixed:

CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed
local users to cause a denial of service (such as relay blockage) by
triggering a NULL alloc_percpu result (bnc#1158265).

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-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo()
function in net/packet/af_packet.c could result in a denial of service
(CPU consumption and soft lockup) in a certain failure case involving
TPACKET_V3 (bnc#1172453).

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 (bnc#1174462).

CVE-2020-10135: Legacy pairing and secure-connections pairing
authentication in Bluetooth(r) BR/EDR Core Specification v5.2 and earlier
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-2020-10711: A NULL pointer dereference flaw was found in the SELinux
subsystem in versions This flaw occurs while importing the Commercial IP
Security Option (CIPSO) protocol's category bitmap into the SELinux
extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw
allowed a remote network user to crash the system kernel, resulting in a
denial of service (bnc#1171191).

CVE-2020-10732: A flaw was found in the implementation of Userspace core
dumps. This flaw allowed an attacker with a local account to crash a
trivial program and exfiltrate private kernel data (bnc#1171220).

CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation,
where it incorrectly assumed that an skb would only contain a single
netlink message. The hook would incorrectly only validate the first
netlink message in the skb and allow or deny the rest of the messages
within the skb with the granted permission without further processing
(bnc#1171189).

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-2020-10768: Fixed an issue with the prctl() function, where indirect
branch speculation could be enabled even though it was diabled be... [Please see the references for more information on the vulnerabilities]

Affected Software/OS:
'Linux Kernel' package(s) on SUSE Linux Enterprise Workstation Extension 15-SP2, SUSE Linux Enterprise Module for Live Patching 15-SP2, SUSE Linux Enterprise Module for Legacy Software 15-SP2, SUSE Linux Enterprise Module for Development Tools 15-SP2, SUSE Linux Enterprise Module for Basesystem 15-SP2, SUSE Linux Enterprise High Availability 15-SP2

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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