Linux Security
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    SUSE: 2020:3503-1 important: the Linux Kernel

    Date 24 Nov 2020
    2095
    Posted By LinuxSecurity Advisories
    An update that solves 21 vulnerabilities and has 21 fixes is now available.
    
       SUSE Security Update: Security update for the Linux Kernel
    ______________________________________________________________________________
    
    Announcement ID:    SUSE-SU-2020:3503-1
    Rating:             important
    References:         #1065600 #1083244 #1121826 #1121872 #1157298 
                        #1160917 #1170415 #1175228 #1175306 #1175721 
                        #1175749 #1176011 #1176069 #1176235 #1176253 
                        #1176278 #1176381 #1176382 #1176423 #1176482 
                        #1176721 #1176722 #1176725 #1176816 #1176896 
                        #1176990 #1177027 #1177086 #1177121 #1177165 
                        #1177206 #1177226 #1177410 #1177411 #1177511 
                        #1177513 #1177725 #1177766 #1177816 #1178123 
                        #1178622 #1178782 
    Cross-References:   CVE-2017-18204 CVE-2019-19063 CVE-2019-6133
                        CVE-2020-0404 CVE-2020-0427 CVE-2020-0431
                        CVE-2020-0432 CVE-2020-12352 CVE-2020-14351
                        CVE-2020-14381 CVE-2020-14390 CVE-2020-25212
                        CVE-2020-25284 CVE-2020-25641 CVE-2020-25643
                        CVE-2020-25645 CVE-2020-25656 CVE-2020-25668
                        CVE-2020-25705 CVE-2020-26088 CVE-2020-8694
                       
    Affected Products:
                        SUSE OpenStack Cloud Crowbar 8
                        SUSE OpenStack Cloud 8
                        SUSE Linux Enterprise Server for SAP 12-SP3
                        SUSE Linux Enterprise Server 12-SP3-LTSS
                        SUSE Linux Enterprise Server 12-SP3-BCL
                        SUSE Linux Enterprise High Availability 12-SP3
                        SUSE Enterprise Storage 5
                        HPE Helion Openstack 8
    ______________________________________________________________________________
    
       An update that solves 21 vulnerabilities and has 21 fixes
       is now available.
    
    Description:
    
    
       The SUSE Linux Enterprise 12 SP3 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-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
       - CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl
         (bnc#1177766).
       - CVE-2020-14351: Fixed a race in the perf_mmap_close() function
         (bsc#1177086).
       - CVE-2020-8694: Restricted energy meter to root access (bsc#1170415).
       - CVE-2020-12352: Fixed an information leak when processing certain AMP
         packets aka "BleedingTooth" (bsc#1177725).
       - CVE-2020-25645: Fixed an issue which traffic between two Geneve
         endpoints may be unencrypted when IPsec is configured to encrypt traffic
         for the specific UDP port used by the GENEVE tunnel allowing anyone
         between the two endpoints to read the traffic unencrypted (bsc#1177511).
       - CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex)
         wait operation, which could have lead to memory corruption and possibly
         privilege escalation (bsc#1176011).
       - CVE-2020-25212: Fixed A TOCTOU mismatch in the NFS client code which
         could have been used by local attackers to corrupt memory (bsc#1176381).
       - 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-2020-25643: Fixed a memory corruption and a read overflow which
         could have caused by improper input validation in the ppp_cp_parse_cr
         function (bsc#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-2020-0432: Fixed an out of bounds write due to an integer overflow
         (bsc#1176721).
       - CVE-2020-0431: Fixed an out of bounds write due to a missing bounds
         check (bsc#1176722).
       - CVE-2020-0427: Fixed an out of bounds read due to a use after free
         (bsc#1176725).
       - 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-2019-19063: Fixed two memory leaks in the rtl_usb_probe() function
         in drivers/net/wireless/realtek/rtlwifi/usb.c, which could have allowed
         an attacker to cause a denial of service (memory consumption)
         (bsc#1157298).
       - CVE-2019-6133: In PolicyKit (aka polkit), the "start time" protection
         mechanism can be bypassed because fork() is not atomic, and therefore
         authorization decisions are improperly cached. This is related to lack
         of uid checking in polkitbackend/polkitbackendinteractiveauthority.c
         (bsc#1121872).
       - CVE-2017-18204: Fixed a denial of service in the ocfs2_setattr function
         of fs/ocfs2/file.c (bnc#1083244).
    
       The following non-security bugs were fixed:
    
       - 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).
       - mm, numa: fix bad pmd by atomically check for pmd_trans_huge when
         marking page tables prot_numa (bsc#1176816).
       - net/packet: fix overflow in tpacket_rcv (bsc#1176069).
       - ocfs2: give applications more IO opportunities during fstrim
         (bsc#1175228).
       - 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-blkfront: switch kcalloc to kvcalloc for large array allocation
         (bsc#1160917).
       - xen: do not reschedule in preemption off sections (bsc#1175749).
       - 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 8:
    
          zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-3503=1
    
       - SUSE OpenStack Cloud 8:
    
          zypper in -t patch SUSE-OpenStack-Cloud-8-2020-3503=1
    
       - SUSE Linux Enterprise Server for SAP 12-SP3:
    
          zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-3503=1
    
       - SUSE Linux Enterprise Server 12-SP3-LTSS:
    
          zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-3503=1
    
       - SUSE Linux Enterprise Server 12-SP3-BCL:
    
          zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-3503=1
    
       - SUSE Linux Enterprise High Availability 12-SP3:
    
          zypper in -t patch SUSE-SLE-HA-12-SP3-2020-3503=1
    
       - SUSE Enterprise Storage 5:
    
          zypper in -t patch SUSE-Storage-5-2020-3503=1
    
       - HPE Helion Openstack 8:
    
          zypper in -t patch HPE-Helion-OpenStack-8-2020-3503=1
    
    
    
    Package List:
    
       - SUSE OpenStack Cloud Crowbar 8 (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - SUSE OpenStack Cloud Crowbar 8 (x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-default-kgraft-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
       - SUSE OpenStack Cloud 8 (x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-default-kgraft-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
       - SUSE OpenStack Cloud 8 (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-default-kgraft-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
       - SUSE Linux Enterprise Server for SAP 12-SP3 (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server 12-SP3-LTSS (aarch64 ppc64le s390x x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):
    
          kernel-default-kgraft-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
       - SUSE Linux Enterprise Server 12-SP3-LTSS (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server 12-SP3-LTSS (s390x):
    
          kernel-default-man-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server 12-SP3-BCL (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - SUSE Linux Enterprise Server 12-SP3-BCL (x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
    
       - SUSE Linux Enterprise High Availability 12-SP3 (ppc64le s390x x86_64):
    
          cluster-md-kmp-default-4.4.180-94.135.1
          cluster-md-kmp-default-debuginfo-4.4.180-94.135.1
          dlm-kmp-default-4.4.180-94.135.1
          dlm-kmp-default-debuginfo-4.4.180-94.135.1
          gfs2-kmp-default-4.4.180-94.135.1
          gfs2-kmp-default-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          ocfs2-kmp-default-4.4.180-94.135.1
          ocfs2-kmp-default-debuginfo-4.4.180-94.135.1
    
       - SUSE Enterprise Storage 5 (aarch64 x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
    
       - SUSE Enterprise Storage 5 (x86_64):
    
          kernel-default-kgraft-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
       - SUSE Enterprise Storage 5 (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - HPE Helion Openstack 8 (noarch):
    
          kernel-devel-4.4.180-94.135.1
          kernel-macros-4.4.180-94.135.1
          kernel-source-4.4.180-94.135.1
    
       - HPE Helion Openstack 8 (x86_64):
    
          kernel-default-4.4.180-94.135.1
          kernel-default-base-4.4.180-94.135.1
          kernel-default-base-debuginfo-4.4.180-94.135.1
          kernel-default-debuginfo-4.4.180-94.135.1
          kernel-default-debugsource-4.4.180-94.135.1
          kernel-default-devel-4.4.180-94.135.1
          kernel-default-kgraft-4.4.180-94.135.1
          kernel-syms-4.4.180-94.135.1
          kgraft-patch-4_4_180-94_135-default-1-4.5.1
          kgraft-patch-4_4_180-94_135-default-debuginfo-1-4.5.1
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2017-18204.html
       https://www.suse.com/security/cve/CVE-2019-19063.html
       https://www.suse.com/security/cve/CVE-2019-6133.html
       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-2020-0431.html
       https://www.suse.com/security/cve/CVE-2020-0432.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-2020-25212.html
       https://www.suse.com/security/cve/CVE-2020-25284.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-2020-25705.html
       https://www.suse.com/security/cve/CVE-2020-26088.html
       https://www.suse.com/security/cve/CVE-2020-8694.html
       https://bugzilla.suse.com/1065600
       https://bugzilla.suse.com/1083244
       https://bugzilla.suse.com/1121826
       https://bugzilla.suse.com/1121872
       https://bugzilla.suse.com/1157298
       https://bugzilla.suse.com/1160917
       https://bugzilla.suse.com/1170415
       https://bugzilla.suse.com/1175228
       https://bugzilla.suse.com/1175306
       https://bugzilla.suse.com/1175721
       https://bugzilla.suse.com/1175749
       https://bugzilla.suse.com/1176011
       https://bugzilla.suse.com/1176069
       https://bugzilla.suse.com/1176235
       https://bugzilla.suse.com/1176253
       https://bugzilla.suse.com/1176278
       https://bugzilla.suse.com/1176381
       https://bugzilla.suse.com/1176382
       https://bugzilla.suse.com/1176423
       https://bugzilla.suse.com/1176482
       https://bugzilla.suse.com/1176721
       https://bugzilla.suse.com/1176722
       https://bugzilla.suse.com/1176725
       https://bugzilla.suse.com/1176816
       https://bugzilla.suse.com/1176896
       https://bugzilla.suse.com/1176990
       https://bugzilla.suse.com/1177027
       https://bugzilla.suse.com/1177086
       https://bugzilla.suse.com/1177121
       https://bugzilla.suse.com/1177165
       https://bugzilla.suse.com/1177206
       https://bugzilla.suse.com/1177226
       https://bugzilla.suse.com/1177410
       https://bugzilla.suse.com/1177411
       https://bugzilla.suse.com/1177511
       https://bugzilla.suse.com/1177513
       https://bugzilla.suse.com/1177725
       https://bugzilla.suse.com/1177766
       https://bugzilla.suse.com/1177816
       https://bugzilla.suse.com/1178123
       https://bugzilla.suse.com/1178622
       https://bugzilla.suse.com/1178782
    

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