SUSE alert SUSE-SU-2020:3544-1 (kernel)
| From: | sle-security-updates@lists.suse.com | |
| To: | sle-security-updates@lists.suse.com | |
| Subject: | SUSE-SU-2020:3544-1: important: Security update for the Linux Kernel | |
| Date: | Thu, 26 Nov 2020 21:24:56 +0100 | |
| Message-ID: | <20201126202456.1D8DFF7E7@maintenance.suse.de> |
SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2020:3544-1 Rating: important References: #1051510 #1058115 #1065600 #1131277 #1160947 #1163524 #1166965 #1168468 #1170139 #1170232 #1170415 #1171417 #1171675 #1172073 #1172366 #1173115 #1173233 #1175228 #1175306 #1175721 #1175882 #1176011 #1176235 #1176278 #1176381 #1176423 #1176482 #1176485 #1176698 #1176721 #1176722 #1176723 #1176725 #1176732 #1176869 #1176907 #1176922 #1176935 #1176950 #1176990 #1177027 #1177086 #1177121 #1177206 #1177340 #1177410 #1177411 #1177470 #1177511 #1177724 #1177725 #1177766 #1177816 #1178123 #1178330 #1178393 #1178669 #1178765 #1178782 #1178838 Cross-References: CVE-2020-0404 CVE-2020-0427 CVE-2020-0430 CVE-2020-0431 CVE-2020-0432 CVE-2020-12351 CVE-2020-12352 CVE-2020-14351 CVE-2020-14381 CVE-2020-14390 CVE-2020-16120 CVE-2020-2521 CVE-2020-25212 CVE-2020-25284 CVE-2020-25285 CVE-2020-25641 CVE-2020-25643 CVE-2020-25645 CVE-2020-25656 CVE-2020-25668 CVE-2020-25704 CVE-2020-25705 CVE-2020-26088 CVE-2020-27673 CVE-2020-27675 CVE-2020-8694 Affected Products: SUSE OpenStack Cloud Crowbar 9 SUSE OpenStack Cloud 9 SUSE Linux Enterprise Server for SAP 12-SP4 SUSE Linux Enterprise Server 12-SP4-LTSS SUSE Linux Enterprise High Availability 12-SP4 ______________________________________________________________________________ An update that solves 26 vulnerabilities and has 34 fixes is now available. Description: The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bug fixes. The following security bugs were fixed: - CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782). - CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393). - CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123). - CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766). - CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485). - CVE-2020-0430: Fixed an OOB read in skb_headlen of /include/linux/skbuff.h (bnc#1176723). - CVE-2020-14351: Fixed a race in the perf_mmap_close() function (bsc#1177086). - CVE-2020-16120: Fixed a permissions issue in ovl_path_open() (bsc#1177470). - CVE-2020-8694: Restricted energy meter to root access (bsc#1170415). - CVE-2020-12351: Implemented a kABI workaround for bluetooth l2cap_ops filter addition (bsc#1177724). - CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka "BleedingTooth" (bsc#1177725). - CVE-2020-25212: Fixed a TOCTOU mismatch in the NFS client code (bnc#1176381). - CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bnc#1177511). - CVE-2020-14381: Fixed a UAF in the fast user mutex (futex) wait operation (bsc#1176011). - CVE-2020-25643: Fixed an improper input validation in the ppp_cp_parse_cr function of the HDLC_PPP module (bnc#1177206). - CVE-2020-25641: Fixed a zero-length biovec request issued by the block subsystem could have caused the kernel to enter an infinite loop, causing a denial of service (bsc#1177121). - CVE-2020-26088: Fixed an improper CAP_NET_RAW check in NFC socket creation could have been used by local attackers to create raw sockets, bypassing security mechanisms (bsc#1176990). - CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory corruption or a denial of service when changing screen size (bnc#1176235). - CVE-2020-0432: Fixed an out of bounds write due to an integer overflow (bsc#1176721). - CVE-2020-0427: Fixed an out of bounds read due to a use after free (bsc#1176725). - CVE-2020-0431: Fixed an out of bounds write due to a missing bounds check (bsc#1176722). - CVE-2020-0404: Fixed a linked list corruption due to an unusual root cause (bsc#1176423). - CVE-2020-25284: Fixed an incomplete permission checking for access to rbd devices, which could have been leveraged by local attackers to map or unmap rbd block devices (bsc#1176482). - 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-2020-27675: Fixed a race condition in event handler which may crash dom0 (XSA-331 bsc#1177410). The following non-security bugs were fixed: - btrfs: remove root usage from can_overcommit (bsc#1131277). - hv: vmbus: Add timeout to vmbus_wait_for_unload (bsc#1177816). - hyperv_fb: disable superfluous VERSION_WIN10_V5 case (bsc#1175306). - hyperv_fb: Update screen_info after removing old framebuffer (bsc#1175306). - livepatch: Add -fdump-ipa-clones to build (). Add support for -fdump-ipa-clones GCC option. Update config files accordingly. - livepatch: Test if -fdump-ipa-clones is really available As of now we add -fdump-ipa-clones unconditionally. It does not cause a trouble if the kernel is build with the supported toolchain. Otherwise it could fail easily. Do the correct thing and test for the availability. - NFS: On fatal writeback errors, we need to call nfs_inode_remove_request() (bsc#1177340). - NFS: only invalidate dentrys that are clearly invalid (bsc#1178669 bsc#1170139). - NFS: Revalidate the file mapping on all fatal writeback errors (bsc#1177340). - NFSv4: do not mark all open state for recovery when handling recallable state revoked flag (bsc#1176935). - obsolete_kmp: provide newer version than the obsoleted one (boo#1170232). - ocfs2: give applications more IO opportunities during fstrim (bsc#1175228). - powerpc/pseries/cpuidle: add polling idle for shared processor guests (bsc#1178765 ltc#188968). - rpadlpar_io: Add MODULE_DESCRIPTION entries to kernel modules (bsc#1176869 ltc#188243). - scsi: fnic: Do not call 'scsi_done()' for unhandled commands (bsc#1168468, bsc#1171675). - scsi: qla2xxx: Do not consume srb greedily (bsc#1173233). - scsi: qla2xxx: Handle incorrect entry_type entries (bsc#1173233). - video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host (bsc#1175306). - video: hyperv: hyperv_fb: Support deferred IO for Hyper-V frame buffer driver (bsc#1175306). - video: hyperv: hyperv_fb: Use physical memory for fb on HyperV Gen 1 VMs (bsc#1175306). - x86/kexec: Use up-to-dated screen_info copy to fill boot params (bsc#1175306). - xen/blkback: use lateeoi irq binding (XSA-332 bsc#1177411). - xen/events: add a new "late EOI" evtchn framework (XSA-332 bsc#1177411). - xen/events: add a proper barrier to 2-level uevent unmasking (XSA-332 bsc#1177411). - xen/events: avoid removing an event channel while handling it (XSA-331 bsc#1177410). - xen/events: block rogue events for some time (XSA-332 bsc#1177411). - xen/events: defer eoi in case of excessive number of events (XSA-332 bsc#1177411). - xen/events: do not use chip_data for legacy IRQs (XSA-332 bsc#1065600). - xen/events: fix race in evtchn_fifo_unmask() (XSA-332 bsc#1177411). - xen/events: switch user event channels to lateeoi model (XSA-332 bsc#1177411). - xen/events: use a common cpu hotplug hook for event channels (XSA-332 bsc#1177411). - xen/netback: use lateeoi irq binding (XSA-332 bsc#1177411). - xen/pciback: use lateeoi irq binding (XSA-332 bsc#1177411). - xen/scsiback: use lateeoi irq binding (XSA-332 bsc#1177411). - xen uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information (XSA-332 bsc#1065600). 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 Crowbar 9: zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2020-3544=1 - SUSE OpenStack Cloud 9: zypper in -t patch SUSE-OpenStack-Cloud-9-2020-3544=1 - SUSE Linux Enterprise Server for SAP 12-SP4: zypper in -t patch SUSE-SLE-SAP-12-SP4-2020-3544=1 - SUSE Linux Enterprise Server 12-SP4-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2020-3544=1 - SUSE Linux Enterprise High Availability 12-SP4: zypper in -t patch SUSE-SLE-HA-12-SP4-2020-3544=1 Package List: - SUSE OpenStack Cloud Crowbar 9 (noarch): kernel-devel-4.12.14-95.65.1 kernel-macros-4.12.14-95.65.1 kernel-source-4.12.14-95.65.1 - SUSE OpenStack Cloud Crowbar 9 (x86_64): kernel-default-4.12.14-95.65.1 kernel-default-base-4.12.14-95.65.1 kernel-default-base-debuginfo-4.12.14-95.65.1 kernel-default-debuginfo-4.12.14-95.65.1 kernel-default-debugsource-4.12.14-95.65.1 kernel-default-devel-4.12.14-95.65.1 kernel-default-devel-debuginfo-4.12.14-95.65.1 kernel-syms-4.12.14-95.65.1 - SUSE OpenStack Cloud 9 (x86_64): kernel-default-4.12.14-95.65.1 kernel-default-base-4.12.14-95.65.1 kernel-default-base-debuginfo-4.12.14-95.65.1 kernel-default-debuginfo-4.12.14-95.65.1 kernel-default-debugsource-4.12.14-95.65.1 kernel-default-devel-4.12.14-95.65.1 kernel-default-devel-debuginfo-4.12.14-95.65.1 kernel-syms-4.12.14-95.65.1 - SUSE OpenStack Cloud 9 (noarch): kernel-devel-4.12.14-95.65.1 kernel-macros-4.12.14-95.65.1 kernel-source-4.12.14-95.65.1 - SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64): kernel-default-4.12.14-95.65.1 kernel-default-base-4.12.14-95.65.1 kernel-default-base-debuginfo-4.12.14-95.65.1 kernel-default-debuginfo-4.12.14-95.65.1 kernel-default-debugsource-4.12.14-95.65.1 kernel-default-devel-4.12.14-95.65.1 kernel-syms-4.12.14-95.65.1 - SUSE Linux Enterprise Server for SAP 12-SP4 (noarch): kernel-devel-4.12.14-95.65.1 kernel-macros-4.12.14-95.65.1 kernel-source-4.12.14-95.65.1 - SUSE Linux Enterprise Server for SAP 12-SP4 (x86_64): kernel-default-devel-debuginfo-4.12.14-95.65.1 - SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 ppc64le s390x x86_64): kernel-default-4.12.14-95.65.1 kernel-default-base-4.12.14-95.65.1 kernel-default-base-debuginfo-4.12.14-95.65.1 kernel-default-debuginfo-4.12.14-95.65.1 kernel-default-debugsource-4.12.14-95.65.1 kernel-default-devel-4.12.14-95.65.1 kernel-syms-4.12.14-95.65.1 - SUSE Linux Enterprise Server 12-SP4-LTSS (x86_64): kernel-default-devel-debuginfo-4.12.14-95.65.1 - SUSE Linux Enterprise Server 12-SP4-LTSS (noarch): kernel-devel-4.12.14-95.65.1 kernel-macros-4.12.14-95.65.1 kernel-source-4.12.14-95.65.1 - SUSE Linux Enterprise Server 12-SP4-LTSS (s390x): kernel-default-man-4.12.14-95.65.1 - SUSE Linux Enterprise High Availability 12-SP4 (ppc64le s390x x86_64): cluster-md-kmp-default-4.12.14-95.65.1 cluster-md-kmp-default-debuginfo-4.12.14-95.65.1 dlm-kmp-default-4.12.14-95.65.1 dlm-kmp-default-debuginfo-4.12.14-95.65.1 gfs2-kmp-default-4.12.14-95.65.1 gfs2-kmp-default-debuginfo-4.12.14-95.65.1 kernel-default-debuginfo-4.12.14-95.65.1 kernel-default-debugsource-4.12.14-95.65.1 ocfs2-kmp-default-4.12.14-95.65.1 ocfs2-kmp-default-debuginfo-4.12.14-95.65.1 References: https://www.suse.com/security/cve/CVE-2020-0404.html https://www.suse.com/security/cve/CVE-2020-0427.html https://www.suse.com/security/cve/CVE-2020-0430.html https://www.suse.com/security/cve/CVE-2020-0431.html https://www.suse.com/security/cve/CVE-2020-0432.html https://www.suse.com/security/cve/CVE-2020-12351.html https://www.suse.com/security/cve/CVE-2020-12352.html https://www.suse.com/security/cve/CVE-2020-14351.html https://www.suse.com/security/cve/CVE-2020-14381.html https://www.suse.com/security/cve/CVE-2020-14390.html https://www.suse.com/security/cve/CVE-2020-16120.html https://www.suse.com/security/cve/CVE-2020-2521.html https://www.suse.com/security/cve/CVE-2020-25212.html https://www.suse.com/security/cve/CVE-2020-25284.html https://www.suse.com/security/cve/CVE-2020-25285.html https://www.suse.com/security/cve/CVE-2020-25641.html https://www.suse.com/security/cve/CVE-2020-25643.html https://www.suse.com/security/cve/CVE-2020-25645.html https://www.suse.com/security/cve/CVE-2020-25656.html https://www.suse.com/security/cve/CVE-2020-25668.html https://www.suse.com/security/cve/CVE-2020-25704.html https://www.suse.com/security/cve/CVE-2020-25705.html https://www.suse.com/security/cve/CVE-2020-26088.html https://www.suse.com/security/cve/CVE-2020-27673.html https://www.suse.com/security/cve/CVE-2020-27675.html https://www.suse.com/security/cve/CVE-2020-8694.html https://bugzilla.suse.com/1051510 https://bugzilla.suse.com/1058115 https://bugzilla.suse.com/1065600 https://bugzilla.suse.com/1131277 https://bugzilla.suse.com/1160947 https://bugzilla.suse.com/1163524 https://bugzilla.suse.com/1166965 https://bugzilla.suse.com/1168468 https://bugzilla.suse.com/1170139 https://bugzilla.suse.com/1170232 https://bugzilla.suse.com/1170415 https://bugzilla.suse.com/1171417 https://bugzilla.suse.com/1171675 https://bugzilla.suse.com/1172073 https://bugzilla.suse.com/1172366 https://bugzilla.suse.com/1173115 https://bugzilla.suse.com/1173233 https://bugzilla.suse.com/1175228 https://bugzilla.suse.com/1175306 https://bugzilla.suse.com/1175721 https://bugzilla.suse.com/1175882 https://bugzilla.suse.com/1176011 https://bugzilla.suse.com/1176235 https://bugzilla.suse.com/1176278 https://bugzilla.suse.com/1176381 https://bugzilla.suse.com/1176423 https://bugzilla.suse.com/1176482 https://bugzilla.suse.com/1176485 https://bugzilla.suse.com/1176698 https://bugzilla.suse.com/1176721 https://bugzilla.suse.com/1176722 https://bugzilla.suse.com/1176723 https://bugzilla.suse.com/1176725 https://bugzilla.suse.com/1176732 https://bugzilla.suse.com/1176869 https://bugzilla.suse.com/1176907 https://bugzilla.suse.com/1176922 https://bugzilla.suse.com/1176935 https://bugzilla.suse.com/1176950 https://bugzilla.suse.com/1176990 https://bugzilla.suse.com/1177027 https://bugzilla.suse.com/1177086 https://bugzilla.suse.com/1177121 https://bugzilla.suse.com/1177206 https://bugzilla.suse.com/1177340 https://bugzilla.suse.com/1177410 https://bugzilla.suse.com/1177411 https://bugzilla.suse.com/1177470 https://bugzilla.suse.com/1177511 https://bugzilla.suse.com/1177724 https://bugzilla.suse.com/1177725 https://bugzilla.suse.com/1177766 https://bugzilla.suse.com/1177816 https://bugzilla.suse.com/1178123 https://bugzilla.suse.com/1178330 https://bugzilla.suse.com/1178393 https://bugzilla.suse.com/1178669 https://bugzilla.suse.com/1178765 https://bugzilla.suse.com/1178782 https://bugzilla.suse.com/1178838