SUSE-SU-2021:0437-1: important: Security update for the Linux Kernel
sle-security-updates at lists.suse.com
sle-security-updates at lists.suse.com
Thu Feb 11 20:19:08 UTC 2021
SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0437-1
Rating: important
References: #1070943 #1121826 #1121872 #1157298 #1168952
#1173942 #1176395 #1176485 #1177411 #1178123
#1178182 #1178589 #1178622 #1178886 #1179107
#1179140 #1179141 #1179204 #1179419 #1179508
#1179509 #1179601 #1179616 #1179663 #1179666
#1179745 #1179877 #1179960 #1179961 #1180008
#1180027 #1180028 #1180029 #1180030 #1180031
#1180032 #1180052 #1180086 #1180559 #1180562
#1181349 #969755
Cross-References: CVE-2019-19063 CVE-2019-20934 CVE-2019-6133
CVE-2020-0444 CVE-2020-0465 CVE-2020-0466
CVE-2020-11668 CVE-2020-15436 CVE-2020-15437
CVE-2020-25211 CVE-2020-25285 CVE-2020-25668
CVE-2020-25669 CVE-2020-27068 CVE-2020-27673
CVE-2020-27777 CVE-2020-27786 CVE-2020-27825
CVE-2020-28915 CVE-2020-28974 CVE-2020-29568
CVE-2020-29569 CVE-2020-29660 CVE-2020-29661
CVE-2020-36158 CVE-2021-3347
CVSS scores:
CVE-2019-19063 (NVD) : 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2019-19063 (SUSE): 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2019-20934 (NVD) : 5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
CVE-2019-20934 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2019-6133 (NVD) : 6.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVE-2019-6133 (SUSE): 6.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVE-2020-0444 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-0444 (SUSE): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-0465 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-0465 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2020-0466 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-0466 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2020-11668 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVE-2020-11668 (SUSE): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVE-2020-15436 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-15436 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-15437 (NVD) : 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVE-2020-15437 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2020-25211 (NVD) : 6 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CVE-2020-25211 (SUSE): 5.9 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVE-2020-25285 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-25285 (SUSE): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-25668 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-25669 (SUSE): 4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2020-27068 (SUSE): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVE-2020-27673 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2020-27673 (SUSE): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-27777 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-27777 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-27786 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-27786 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-27825 (NVD) : 5.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
CVE-2020-27825 (SUSE): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2020-28915 (NVD) : 5.8 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
CVE-2020-28915 (SUSE): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVE-2020-28974 (NVD) : 5 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
CVE-2020-28974 (SUSE): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
CVE-2020-29568 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVE-2020-29568 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVE-2020-29569 (NVD) : 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2020-29569 (SUSE): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2020-29660 (NVD) : 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVE-2020-29660 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2020-29661 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-29661 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2020-36158 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-36158 (SUSE): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Server for SAP 12-SP2
SUSE Linux Enterprise Server 12-SP2-LTSS
SUSE Linux Enterprise Server 12-SP2-BCL
SUSE Linux Enterprise High Availability 12-SP2
______________________________________________________________________________
An update that solves 26 vulnerabilities and has 16 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-2021-3347: A use-after-free was discovered in the PI futexes during
fault handling, allowing local users to execute code in the kernel
(bnc#1181349).
- CVE-2020-29569: Fixed a potential privilege escalation and information
leaks related to the PV block backend, as used by Xen (bnc#1179509).
- CVE-2020-29568: Fixed a denial of service issue, related to processing
watch events (bnc#1179508).
- CVE-2020-25211: Fixed a flaw where a local attacker was able to inject
conntrack netlink configuration that could cause a denial of service or
trigger the use of incorrect protocol numbers in
ctnetlink_parse_tuple_filter (bnc#1176395).
- CVE-2020-0444: Fixed a bad kfree due to a logic error in
audit_data_to_entry (bnc#1180027).
- CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c
that could have led to local privilege escalation (bnc#1180029).
- CVE-2020-0466: Fixed a use-after-free due to a logic error in
do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
- CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c
which could have allowed local users to gain privileges or cause a
denial of service (bsc#1179141).
- CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds
check in the nl80211_policy policy of nl80211.c (bnc#1180086).
- CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction
Services (RTAS) interface, affecting guests running on top of PowerVM or
KVM hypervisors (bnc#1179107).
- CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation
(bnc#1179601).
- CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls
(bsc#1179960).
- CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that
may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
- CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed
a use-after-free attack against TIOCSPGRP (bsc#1179745).
- CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could
have been used by local attackers to read privileged information or
potentially crash the kernel (bsc#1178589).
- CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could
have been used by local attackers to read kernel memory (bsc#1178886).
- CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit()
(bsc#1178182).
- CVE-2020-25285: A race condition between hugetlb sysctl handlers in
mm/hugetlb.c could be used by local attackers to corrupt memory, cause a
NULL pointer dereference, or possibly have unspecified other impact
(bnc#1176485 ).
- CVE-2020-15437: Fixed a null pointer dereference which could have
allowed local users to cause a denial of service (bsc#1179140).
- CVE-2020-36158: Fixed a potential remote code execution in the Marvell
mwifiex driver (bsc#1180559).
- CVE-2020-11668: Fixed the mishandling of invalid descriptors in the
Xirlink camera USB driver (bnc#1168952).
- CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
- CVE-2020-27673: Fixed an issue where rogue guests could have caused
denial of service of Dom0 via high frequency events (XSA-332 bsc#1177411)
- CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA
fault statistics were inappropriately freed (bsc#1179663).
- CVE-2019-19063: Fixed two memory leaks in the rtl_usb_probe() which
could eventually have allowed attackers to cause a denial of service
(memory consumption) (bnc#1157298 ).
- CVE-2019-6133: Fixed an issue where the "start time" protection
mechanism could have been bypassed and therefore authorization decisions
are improperly cached (bsc#1128172).
The following non-security bugs were fixed:
- HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052).
- epoll: Keep a reference on files added to the check list (bsc#1180031).
- fix regression in "epoll: Keep a reference on files added to the check
list" (bsc#1180031, git-fixes).
- futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock() (bsc#969755).
- futex,rt_mutex: Introduce rt_mutex_init_waiter() (bsc#969755).
- futex,rt_mutex: Provide futex specific rt_mutex API (bsc#969755).
- futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() (bsc#969755).
- futex: Avoid freeing an active timer (bsc#969755).
- futex: Avoid violating the 10th rule of futex (bsc#969755).
- futex: Change locking rules (bsc#969755).
- futex: Do not enable IRQs unconditionally in put_pi_state() (bsc#969755).
- futex: Drop hb->lock before enqueueing on the rtmutex (bsc#969755).
- futex: Fix OWNER_DEAD fixup (bsc#969755).
- futex: Fix incorrect should_fail_futex() handling (bsc#969755).
- futex: Fix more put_pi_state() vs. exit_pi_state_list() races
(bsc#969755).
- futex: Fix pi_state->owner serialization (bsc#969755).
- futex: Fix small (and harmless looking) inconsistencies (bsc#969755).
- futex: Futex_unlock_pi() determinism (bsc#969755).
- futex: Handle early deadlock return correctly (bsc#969755).
- futex: Handle transient "ownerless" rtmutex state correctly (bsc#969755).
- futex: Pull rt_mutex_futex_unlock() out from under hb->lock (bsc#969755).
- futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock()
(bsc#969755).
- futex: Rework inconsistent rt_mutex/futex_q state (bsc#969755).
- locking/futex: Allow low-level atomic operations to return -EAGAIN
(bsc#969755).
- mm/userfaultfd: do not access vma->vm_mm after calling
handle_userfault() (bsc#1179204).
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 OpenStack Cloud 7:
zypper in -t patch SUSE-OpenStack-Cloud-7-2021-437=1
- SUSE Linux Enterprise Server for SAP 12-SP2:
zypper in -t patch SUSE-SLE-SAP-12-SP2-2021-437=1
- SUSE Linux Enterprise Server 12-SP2-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-2021-437=1
- SUSE Linux Enterprise Server 12-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-437=1
- SUSE Linux Enterprise High Availability 12-SP2:
zypper in -t patch SUSE-SLE-HA-12-SP2-2021-437=1
Package List:
- SUSE OpenStack Cloud 7 (s390x x86_64):
kernel-default-4.4.121-92.149.1
kernel-default-base-4.4.121-92.149.1
kernel-default-base-debuginfo-4.4.121-92.149.1
kernel-default-debuginfo-4.4.121-92.149.1
kernel-default-debugsource-4.4.121-92.149.1
kernel-default-devel-4.4.121-92.149.1
kernel-syms-4.4.121-92.149.1
- SUSE OpenStack Cloud 7 (noarch):
kernel-devel-4.4.121-92.149.1
kernel-macros-4.4.121-92.149.1
kernel-source-4.4.121-92.149.1
- SUSE OpenStack Cloud 7 (x86_64):
kgraft-patch-4_4_121-92_149-default-1-3.3.1
- SUSE OpenStack Cloud 7 (s390x):
kernel-default-man-4.4.121-92.149.1
- SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
kernel-default-4.4.121-92.149.1
kernel-default-base-4.4.121-92.149.1
kernel-default-base-debuginfo-4.4.121-92.149.1
kernel-default-debuginfo-4.4.121-92.149.1
kernel-default-debugsource-4.4.121-92.149.1
kernel-default-devel-4.4.121-92.149.1
kernel-syms-4.4.121-92.149.1
kgraft-patch-4_4_121-92_149-default-1-3.3.1
- SUSE Linux Enterprise Server for SAP 12-SP2 (noarch):
kernel-devel-4.4.121-92.149.1
kernel-macros-4.4.121-92.149.1
kernel-source-4.4.121-92.149.1
- SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le s390x x86_64):
kernel-default-4.4.121-92.149.1
kernel-default-base-4.4.121-92.149.1
kernel-default-base-debuginfo-4.4.121-92.149.1
kernel-default-debuginfo-4.4.121-92.149.1
kernel-default-debugsource-4.4.121-92.149.1
kernel-default-devel-4.4.121-92.149.1
kernel-syms-4.4.121-92.149.1
- SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):
kgraft-patch-4_4_121-92_149-default-1-3.3.1
- SUSE Linux Enterprise Server 12-SP2-LTSS (noarch):
kernel-devel-4.4.121-92.149.1
kernel-macros-4.4.121-92.149.1
kernel-source-4.4.121-92.149.1
- SUSE Linux Enterprise Server 12-SP2-LTSS (s390x):
kernel-default-man-4.4.121-92.149.1
- SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
kernel-default-4.4.121-92.149.1
kernel-default-base-4.4.121-92.149.1
kernel-default-base-debuginfo-4.4.121-92.149.1
kernel-default-debuginfo-4.4.121-92.149.1
kernel-default-debugsource-4.4.121-92.149.1
kernel-default-devel-4.4.121-92.149.1
kernel-syms-4.4.121-92.149.1
- SUSE Linux Enterprise Server 12-SP2-BCL (noarch):
kernel-devel-4.4.121-92.149.1
kernel-macros-4.4.121-92.149.1
kernel-source-4.4.121-92.149.1
- SUSE Linux Enterprise High Availability 12-SP2 (ppc64le s390x x86_64):
cluster-md-kmp-default-4.4.121-92.149.1
cluster-md-kmp-default-debuginfo-4.4.121-92.149.1
cluster-network-kmp-default-4.4.121-92.149.1
cluster-network-kmp-default-debuginfo-4.4.121-92.149.1
dlm-kmp-default-4.4.121-92.149.1
dlm-kmp-default-debuginfo-4.4.121-92.149.1
gfs2-kmp-default-4.4.121-92.149.1
gfs2-kmp-default-debuginfo-4.4.121-92.149.1
kernel-default-debuginfo-4.4.121-92.149.1
kernel-default-debugsource-4.4.121-92.149.1
ocfs2-kmp-default-4.4.121-92.149.1
ocfs2-kmp-default-debuginfo-4.4.121-92.149.1
References:
https://www.suse.com/security/cve/CVE-2019-19063.html
https://www.suse.com/security/cve/CVE-2019-20934.html
https://www.suse.com/security/cve/CVE-2019-6133.html
https://www.suse.com/security/cve/CVE-2020-0444.html
https://www.suse.com/security/cve/CVE-2020-0465.html
https://www.suse.com/security/cve/CVE-2020-0466.html
https://www.suse.com/security/cve/CVE-2020-11668.html
https://www.suse.com/security/cve/CVE-2020-15436.html
https://www.suse.com/security/cve/CVE-2020-15437.html
https://www.suse.com/security/cve/CVE-2020-25211.html
https://www.suse.com/security/cve/CVE-2020-25285.html
https://www.suse.com/security/cve/CVE-2020-25668.html
https://www.suse.com/security/cve/CVE-2020-25669.html
https://www.suse.com/security/cve/CVE-2020-27068.html
https://www.suse.com/security/cve/CVE-2020-27673.html
https://www.suse.com/security/cve/CVE-2020-27777.html
https://www.suse.com/security/cve/CVE-2020-27786.html
https://www.suse.com/security/cve/CVE-2020-27825.html
https://www.suse.com/security/cve/CVE-2020-28915.html
https://www.suse.com/security/cve/CVE-2020-28974.html
https://www.suse.com/security/cve/CVE-2020-29568.html
https://www.suse.com/security/cve/CVE-2020-29569.html
https://www.suse.com/security/cve/CVE-2020-29660.html
https://www.suse.com/security/cve/CVE-2020-29661.html
https://www.suse.com/security/cve/CVE-2020-36158.html
https://www.suse.com/security/cve/CVE-2021-3347.html
https://bugzilla.suse.com/1070943
https://bugzilla.suse.com/1121826
https://bugzilla.suse.com/1121872
https://bugzilla.suse.com/1157298
https://bugzilla.suse.com/1168952
https://bugzilla.suse.com/1173942
https://bugzilla.suse.com/1176395
https://bugzilla.suse.com/1176485
https://bugzilla.suse.com/1177411
https://bugzilla.suse.com/1178123
https://bugzilla.suse.com/1178182
https://bugzilla.suse.com/1178589
https://bugzilla.suse.com/1178622
https://bugzilla.suse.com/1178886
https://bugzilla.suse.com/1179107
https://bugzilla.suse.com/1179140
https://bugzilla.suse.com/1179141
https://bugzilla.suse.com/1179204
https://bugzilla.suse.com/1179419
https://bugzilla.suse.com/1179508
https://bugzilla.suse.com/1179509
https://bugzilla.suse.com/1179601
https://bugzilla.suse.com/1179616
https://bugzilla.suse.com/1179663
https://bugzilla.suse.com/1179666
https://bugzilla.suse.com/1179745
https://bugzilla.suse.com/1179877
https://bugzilla.suse.com/1179960
https://bugzilla.suse.com/1179961
https://bugzilla.suse.com/1180008
https://bugzilla.suse.com/1180027
https://bugzilla.suse.com/1180028
https://bugzilla.suse.com/1180029
https://bugzilla.suse.com/1180030
https://bugzilla.suse.com/1180031
https://bugzilla.suse.com/1180032
https://bugzilla.suse.com/1180052
https://bugzilla.suse.com/1180086
https://bugzilla.suse.com/1180559
https://bugzilla.suse.com/1180562
https://bugzilla.suse.com/1181349
https://bugzilla.suse.com/969755
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