SUSE-SU-2021:2409-1: important: Security update for the Linux Kernel
sle-security-updates at lists.suse.com
sle-security-updates at lists.suse.com
Tue Jul 20 16:32:45 UTC 2021
SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:2409-1
Rating: important
References: #1152489 #1182470 #1185486 #1187927 #1187972
#1187980 #1188062 #1188116
Cross-References: CVE-2021-22555 CVE-2021-33909
CVSS scores:
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-2021-33909 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Module for Public Cloud 15-SP3
______________________________________________________________________________
An update that solves two vulnerabilities and has 6 fixes
is now available.
Description:
The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive
various security and bugfixes.
The following security bugs were fixed:
- CVE-2021-22555: A heap out-of-bounds write affecting Linux since
v2.6.19-rc1 was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
- CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer
that allows to obtain full root privileges (bsc#1188062).
The following non-security bugs were fixed:
- ceph: must hold snap_rwsem when filling inode for async create
(bsc#1187927).
- cgroup1: do not allow '\n' in renaming (bsc#1187972).
- qla2xxx: synchronize rport dev_loss_tmo setting (bsc#1182470
bsc#1185486).
- scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM (bsc#1187980).
- usb: dwc3: Fix debugfs creation flow (git-fixes).
- x86/pkru: Write hardware init value to PKRU when xstate is init
(bsc#1152489).
- x86/process: Check PF_KTHREAD and not current->mm for kernel threads
(bsc#1152489).
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 Module for Public Cloud 15-SP3:
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP3-2021-2409=1
Package List:
- SUSE Linux Enterprise Module for Public Cloud 15-SP3 (x86_64):
kernel-azure-5.3.18-38.14.1
kernel-azure-debuginfo-5.3.18-38.14.1
kernel-azure-debugsource-5.3.18-38.14.1
kernel-azure-devel-5.3.18-38.14.1
kernel-azure-devel-debuginfo-5.3.18-38.14.1
kernel-syms-azure-5.3.18-38.14.1
- SUSE Linux Enterprise Module for Public Cloud 15-SP3 (noarch):
kernel-devel-azure-5.3.18-38.14.1
kernel-source-azure-5.3.18-38.14.1
References:
https://www.suse.com/security/cve/CVE-2021-22555.html
https://www.suse.com/security/cve/CVE-2021-33909.html
https://bugzilla.suse.com/1152489
https://bugzilla.suse.com/1182470
https://bugzilla.suse.com/1185486
https://bugzilla.suse.com/1187927
https://bugzilla.suse.com/1187972
https://bugzilla.suse.com/1187980
https://bugzilla.suse.com/1188062
https://bugzilla.suse.com/1188116
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