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AUSCERT External Security Bulletin Redistribution
ESB-2022.2958
Security update for the Linux Kernel
16 June 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-30594 CVE-2022-28390 CVE-2022-28388
CVE-2022-21499 CVE-2022-21180 CVE-2022-21166
CVE-2022-21127 CVE-2022-21125 CVE-2022-21123
CVE-2022-1975 CVE-2022-1974 CVE-2022-1734
CVE-2022-1729 CVE-2022-1652 CVE-2022-1516
CVE-2022-1419 CVE-2022-1353 CVE-2022-1184
CVE-2022-1011 CVE-2021-38208 CVE-2021-33061
CVE-2021-28688 CVE-2021-20321 CVE-2021-20292
CVE-2020-10769 CVE-2019-19377 CVE-2018-20784
CVE-2018-7755 CVE-2017-13695
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20222077-1
Comment: CVSS (Max): 8.4 CVE-2022-30594 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:2077-1
Rating: important
References: #1055710 #1065729 #1084513 #1087082 #1126703 #1158266
#1173265 #1182171 #1183646 #1183723 #1187055 #1191647
#1196426 #1197343 #1198031 #1198032 #1198516 #1198577
#1198660 #1198687 #1198742 #1199012 #1199063 #1199426
#1199505 #1199507 #1199605 #1199650 #1200143 #1200144
#1200249
Cross-References: CVE-2017-13695 CVE-2018-20784 CVE-2018-7755 CVE-2019-19377
CVE-2020-10769 CVE-2021-20292 CVE-2021-20321 CVE-2021-28688
CVE-2021-33061 CVE-2021-38208 CVE-2022-1011 CVE-2022-1184
CVE-2022-1353 CVE-2022-1419 CVE-2022-1516 CVE-2022-1652
CVE-2022-1729 CVE-2022-1734 CVE-2022-1974 CVE-2022-1975
CVE-2022-21123 CVE-2022-21125 CVE-2022-21127 CVE-2022-21166
CVE-2022-21180 CVE-2022-21499 CVE-2022-28388 CVE-2022-28390
CVE-2022-30594
Affected Products:
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________
An update that solves 29 vulnerabilities and has two fixes is now available.
Description:
The SUSE Linux Enterprise 12 SP2 kernel was updated.
The following security bugs were fixed:
o CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c
vulnerability in the Linux kernel (bnc#1198031).
o CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c
vulnerability in the Linux kernel (bnc#1198032).
o CVE-2018-20784: Fixed a denial of service (infinite loop in
update_blocked_averages) by mishandled leaf cfs_rq in kernel/sched/fair.c
(bnc#1126703).
o CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/
block/floppy.c. The floppy driver will copy a kernel pointer to user memory
in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl
and use the obtained kernel pointer to discover the location of kernel code
and data and bypass kernel security protections such as KASLR (bnc#
1084513).
o CVE-2020-10769: Fixed a buffer over-read flaw in the IPsec Cryptographic
algorithm's module. This flaw allowed a local attacker with user privileges
to cause a denial of service. (bnc#1173265)
o CVE-2021-28688: Fixed XSA-365 that includes initialization of pointers such
that subsequent cleanup code wouldn't use uninitialized or stale values.
This initialization went too far and may under certain conditions also
overwrite pointers which are in need of cleaning up. The lack of cleanup
would result in leaking persistent grants. The leak in turn would prevent
fully cleaning up after a respective guest has died, leaving around zombie
domains (bnc#1183646).
o CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to
speculatively/transiently disclose information via spectre like attacks.
(bsc#1199650)
o CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to
speculatively/transiently disclose information via spectre like attacks.
(bsc#1199650)
o CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to
speculatively/transiently disclose information via spectre like attacks.
(bsc#1199650)
o CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to
speculatively/transiently disclose information via spectre like attacks.
(bsc#1199650)
o CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to
speculatively/transiently disclose information via spectre like attacks.
(bsc#1199650)
o CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux
kernel by simulating nfc device from user-space. (bsc#1200143)
o CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by
simulating an nfc device from user-space. (bsc#1200144)
o CVE-2019-19377: Fixed an user-after-free that could be triggered when an
attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
o CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when
mounting and operating on a corrupted image. (bsc#1198577)
o CVE-2017-13695: Fixed a bug that caused a stack dump allowing local users
to obtain sensitive information from kernel memory and bypass the KASLR
protection mechanism via a crafted ACPI table. (bnc#1055710)
o CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self
(bsc#1199507).
o CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been
trivial to break out of it with kgdb or kdb. (bsc#1199426)
o CVE-2022-1652: Fixed a statically allocated error counter inside the floppy
kernel module (bsc#1199063).
o CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between
cleanup routine and firmware download routine. (bnc#1199605)
o CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP
flag (bnc#1199505).
o CVE-2021-33061: Fixed insufficient control flow management for the Intel(R)
82599 Ethernet Controllers and Adapters that may have allowed an
authenticated user to potentially enable denial of service via local access
(bnc#1196426).
o CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
o CVE-2021-20321: Fixed a race condition accessing file object in the
OverlayFS subsystem in the way users do rename in specific way with
OverlayFS. A local user could have used this flaw to crash the system (bnc#
1191647).
o CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create
(bsc#1198742).
o CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and
BUG) by making a getsockname call after a certain type of failure of a bind
call (bnc#1187055).
o CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register
function in net/key/af_key.c. (bnc#1198516)
o CVE-2021-20292: Fixed object validation prior to performing operations on
the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#
1183723).
o CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a
local attacker to retireve (partial) /etc/shadow hashes or any other data
from filesystem when he can mount a FUSE filesystems. (bnc#1197343)
The following non-security bugs were fixed:
o btrfs: tree-checker: fix incorrect printk format (bsc#1200249).
o powerpc/pseries: extract host bridge from pci_bus prior to bus removal (bsc
#1182171 ltc#190900 bsc#1198660 ltc#197803).
o powerpc/pseries: Fix use after free in remove_phb_dynamic() (bsc#1065729
bsc#1198660 ltc#197803).
o x86/speculation: Fix redundant MDS mitigation message (bsc#1199650).
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:
o SUSE Linux Enterprise Server 12-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-2077=1
Package List:
o SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
kernel-default-4.4.121-92.175.2
kernel-default-base-4.4.121-92.175.2
kernel-default-base-debuginfo-4.4.121-92.175.2
kernel-default-debuginfo-4.4.121-92.175.2
kernel-default-debugsource-4.4.121-92.175.2
kernel-default-devel-4.4.121-92.175.2
kernel-syms-4.4.121-92.175.2
o SUSE Linux Enterprise Server 12-SP2-BCL (noarch):
kernel-devel-4.4.121-92.175.2
kernel-macros-4.4.121-92.175.2
kernel-source-4.4.121-92.175.2
References:
o https://www.suse.com/security/cve/CVE-2017-13695.html
o https://www.suse.com/security/cve/CVE-2018-20784.html
o https://www.suse.com/security/cve/CVE-2018-7755.html
o https://www.suse.com/security/cve/CVE-2019-19377.html
o https://www.suse.com/security/cve/CVE-2020-10769.html
o https://www.suse.com/security/cve/CVE-2021-20292.html
o https://www.suse.com/security/cve/CVE-2021-20321.html
o https://www.suse.com/security/cve/CVE-2021-28688.html
o https://www.suse.com/security/cve/CVE-2021-33061.html
o https://www.suse.com/security/cve/CVE-2021-38208.html
o https://www.suse.com/security/cve/CVE-2022-1011.html
o https://www.suse.com/security/cve/CVE-2022-1184.html
o https://www.suse.com/security/cve/CVE-2022-1353.html
o https://www.suse.com/security/cve/CVE-2022-1419.html
o https://www.suse.com/security/cve/CVE-2022-1516.html
o https://www.suse.com/security/cve/CVE-2022-1652.html
o https://www.suse.com/security/cve/CVE-2022-1729.html
o https://www.suse.com/security/cve/CVE-2022-1734.html
o https://www.suse.com/security/cve/CVE-2022-1974.html
o https://www.suse.com/security/cve/CVE-2022-1975.html
o https://www.suse.com/security/cve/CVE-2022-21123.html
o https://www.suse.com/security/cve/CVE-2022-21125.html
o https://www.suse.com/security/cve/CVE-2022-21127.html
o https://www.suse.com/security/cve/CVE-2022-21166.html
o https://www.suse.com/security/cve/CVE-2022-21180.html
o https://www.suse.com/security/cve/CVE-2022-21499.html
o https://www.suse.com/security/cve/CVE-2022-28388.html
o https://www.suse.com/security/cve/CVE-2022-28390.html
o https://www.suse.com/security/cve/CVE-2022-30594.html
o https://bugzilla.suse.com/1055710
o https://bugzilla.suse.com/1065729
o https://bugzilla.suse.com/1084513
o https://bugzilla.suse.com/1087082
o https://bugzilla.suse.com/1126703
o https://bugzilla.suse.com/1158266
o https://bugzilla.suse.com/1173265
o https://bugzilla.suse.com/1182171
o https://bugzilla.suse.com/1183646
o https://bugzilla.suse.com/1183723
o https://bugzilla.suse.com/1187055
o https://bugzilla.suse.com/1191647
o https://bugzilla.suse.com/1196426
o https://bugzilla.suse.com/1197343
o https://bugzilla.suse.com/1198031
o https://bugzilla.suse.com/1198032
o https://bugzilla.suse.com/1198516
o https://bugzilla.suse.com/1198577
o https://bugzilla.suse.com/1198660
o https://bugzilla.suse.com/1198687
o https://bugzilla.suse.com/1198742
o https://bugzilla.suse.com/1199012
o https://bugzilla.suse.com/1199063
o https://bugzilla.suse.com/1199426
o https://bugzilla.suse.com/1199505
o https://bugzilla.suse.com/1199507
o https://bugzilla.suse.com/1199605
o https://bugzilla.suse.com/1199650
o https://bugzilla.suse.com/1200143
o https://bugzilla.suse.com/1200144
o https://bugzilla.suse.com/1200249
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