SUSE-SU-2021:2406-1: important: Security update for the Linux Kernel
sle-security-updates at lists.suse.com
sle-security-updates at lists.suse.com
Tue Jul 20 16:36:25 UTC 2021
SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2406-1
Rating: important
References: #1179610 #1180846 #1184611 #1185859 #1185860
#1185861 #1185862 #1185863 #1185898 #1185987
#1186060 #1186062 #1186111 #1186390 #1186463
#1187038 #1187050 #1187215 #1187452 #1187595
#1187601 #1187934 #1188062 #1188116
Cross-References: CVE-2020-24586 CVE-2020-24587 CVE-2020-24588
CVE-2020-26139 CVE-2020-26141 CVE-2020-26145
CVE-2020-26147 CVE-2020-26558 CVE-2020-36385
CVE-2020-36386 CVE-2021-0129 CVE-2021-0512
CVE-2021-0605 CVE-2021-22555 CVE-2021-23134
CVE-2021-32399 CVE-2021-33034 CVE-2021-33909
CVE-2021-34693 CVE-2021-3609
CVSS scores:
CVE-2020-24586 (NVD) : 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2020-24586 (SUSE): 4.7 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CVE-2020-24587 (NVD) : 2.6 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CVE-2020-24587 (SUSE): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2020-24588 (NVD) : 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVE-2020-24588 (SUSE): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVE-2020-26139 (NVD) : 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-26139 (SUSE): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2020-26141 (SUSE): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2020-26145 (SUSE): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2020-26147 (NVD) : 5.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
CVE-2020-26558 (NVD) : 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2020-26558 (SUSE): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVE-2020-36385 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2020-36385 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2020-36386 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVE-2020-36386 (SUSE): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVE-2021-0129 (NVD) : 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-0129 (SUSE): 6.4 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVE-2021-0512 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-0605 (NVD) : 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVE-2021-0605 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-22555 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-22555 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-23134 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-23134 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-32399 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-32399 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33034 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33034 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVE-2021-33909 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-34693 (SUSE): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2021-3609 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________
An update that solves 20 vulnerabilities and has four fixes
is now available.
Description:
The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various
security and bugfixes.
The following security bugs were fixed:
- CVE-2021-22555: Fixed an heap out-of-bounds write in
net/netfilter/x_tables.c that could allow local provilege escalation.
(bsc#1188116)
- CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer
that allows to obtain full root privileges. (bsc#1188062)
- CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol
which allows for local privilege escalation. (bsc#1187215)
- CVE-2021-0605: Fixed an out-of-bounds read which could lead to local
information disclosure in the kernel with System execution privileges
needed. (bsc#1187601)
- CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to
local escalation of privilege with no additional execution privileges
needed. (bsc#1187595)
- CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local
users to obtain sensitive information from kernel stack memory because
parts of a data structure are uninitialized. (bsc#1187452)
- CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for
local privilege escalation. (bsc#1187050)
- CVE-2021-0129: Fixed an improper access control in BlueZ that may have
allowed an authenticated user to potentially enable information
disclosure via adjacent access. (bsc#1186463)
- CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure
pairing that could permit a nearby man-in-the-middle attacker to
identify the Passkey used during pairing. (bsc#1179610)
- CVE-2020-36386: Fixed an out-of-bounds read in
hci_extended_inquiry_result_evt. (bsc#1187038)
- CVE-2020-24588: Fixed a bug that could allow an adversary to abuse
devices that support receiving non-SSP A-MSDU frames to inject arbitrary
network packets. (bsc#1185861)
- CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c
for removal of the HCI controller. (bsc#1184611)
- CVE-2021-33034: Fixed an issue in net/bluetooth/hci_event.c where a
use-after-free leads to writing an arbitrary value. (bsc#1186111)
- CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward
EAPOL frames to other clients even though the sender has not yet
successfully authenticated. This might be abused in projected Wi-Fi
networks to launch denial-of-service attacks against connected clients
and made it easier to exploit other vulnerabilities in connected
clients. (bsc#1186062)
- CVE-2021-23134: Fixed a use After Free vulnerability in nfc sockets
which allows local attackers to elevate their privileges. (bsc#1186060)
- CVE-2020-24586: Fixed a bug that, under the right circumstances, allows
to inject arbitrary network packets and/or exfiltrate user data when
another device sends fragmented frames encrypted using WEP, CCMP, or
GCMP. (bsc#1185859)
- CVE-2020-26141: Fixed a flaw that could allows an adversary to inject
and possibly decrypt packets in WPA or WPA2 networks that support the
TKIP data-confidentiality protocol. (bsc#1185987)
- CVE-2020-26145: Fixed a bug in the WEP, WPA, WPA2, and WPA3
implementations that could allows an adversary to inject arbitrary
network packets. (bsc#1185860)
- CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected
fragments when another device sends fragmented frames and the WEP, CCMP,
or GCMP encryption key is periodically renewed. (bsc#1185862)
- CVE-2020-26147: Fixed a bug in the WEP, WPA, WPA2, and WPA3
implementations that could allows an adversary to inject packets and/or
exfiltrate selected fragments when another device sends fragmented
frames. (bsc#1185987)
The following non-security bugs were fixed:
- kABI: Fix kABI after modifying struct __call_single_data (bsc#1180846).
- kernel/smp: add boot parameter for controlling CSD lock debugging
(bsc#1180846).
- kernel/smp: Add source and destination CPUs to __call_single_data
(bsc#1180846).
- kernel/smp: make csdlock timeout depend on boot parameter (bsc#1180846).
- kernel/smp: Provide CSD lock timeout diagnostics (bsc#1180846).
- Update config files: activate CONFIG_CSD_LOCK_WAIT_DEBUG for x86
(bsc#1180846).
- Update config files: disable CONFIG_CSD_LOCK_WAIT_DEBUG (bsc#1180846).
Special Instructions and Notes:
Please reboot the system after installing this update.
Patch Instructions:
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-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-2406=1
Package List:
- SUSE Linux Enterprise Server 12-SP2-BCL (noarch):
kernel-devel-4.4.121-92.158.1
kernel-macros-4.4.121-92.158.1
kernel-source-4.4.121-92.158.1
- SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
kernel-default-4.4.121-92.158.1
kernel-default-base-4.4.121-92.158.1
kernel-default-base-debuginfo-4.4.121-92.158.1
kernel-default-debuginfo-4.4.121-92.158.1
kernel-default-debugsource-4.4.121-92.158.1
kernel-default-devel-4.4.121-92.158.1
kernel-syms-4.4.121-92.158.1
References:
https://www.suse.com/security/cve/CVE-2020-24586.html
https://www.suse.com/security/cve/CVE-2020-24587.html
https://www.suse.com/security/cve/CVE-2020-24588.html
https://www.suse.com/security/cve/CVE-2020-26139.html
https://www.suse.com/security/cve/CVE-2020-26141.html
https://www.suse.com/security/cve/CVE-2020-26145.html
https://www.suse.com/security/cve/CVE-2020-26147.html
https://www.suse.com/security/cve/CVE-2020-26558.html
https://www.suse.com/security/cve/CVE-2020-36385.html
https://www.suse.com/security/cve/CVE-2020-36386.html
https://www.suse.com/security/cve/CVE-2021-0129.html
https://www.suse.com/security/cve/CVE-2021-0512.html
https://www.suse.com/security/cve/CVE-2021-0605.html
https://www.suse.com/security/cve/CVE-2021-22555.html
https://www.suse.com/security/cve/CVE-2021-23134.html
https://www.suse.com/security/cve/CVE-2021-32399.html
https://www.suse.com/security/cve/CVE-2021-33034.html
https://www.suse.com/security/cve/CVE-2021-33909.html
https://www.suse.com/security/cve/CVE-2021-34693.html
https://www.suse.com/security/cve/CVE-2021-3609.html
https://bugzilla.suse.com/1179610
https://bugzilla.suse.com/1180846
https://bugzilla.suse.com/1184611
https://bugzilla.suse.com/1185859
https://bugzilla.suse.com/1185860
https://bugzilla.suse.com/1185861
https://bugzilla.suse.com/1185862
https://bugzilla.suse.com/1185863
https://bugzilla.suse.com/1185898
https://bugzilla.suse.com/1185987
https://bugzilla.suse.com/1186060
https://bugzilla.suse.com/1186062
https://bugzilla.suse.com/1186111
https://bugzilla.suse.com/1186390
https://bugzilla.suse.com/1186463
https://bugzilla.suse.com/1187038
https://bugzilla.suse.com/1187050
https://bugzilla.suse.com/1187215
https://bugzilla.suse.com/1187452
https://bugzilla.suse.com/1187595
https://bugzilla.suse.com/1187601
https://bugzilla.suse.com/1187934
https://bugzilla.suse.com/1188062
https://bugzilla.suse.com/1188116
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