SUSE: 2019:1767-1 important: the Linux Kernel (Live Patch 34 for SLE 12 SP1)

    Date08 Jul 2019
    425
    Posted ByLinuxSecurity Advisories
    An update that fixes two vulnerabilities is now available.
    
       SUSE Security Update: Security update for the Linux Kernel (Live Patch 34 for SLE 12 SP1)
    ______________________________________________________________________________
    
    Announcement ID:    SUSE-SU-2019:1767-1
    Rating:             important
    References:         #1102682 #1133191 
    Cross-References:   CVE-2018-5390 CVE-2019-11487
    Affected Products:
                        SUSE Linux Enterprise Server for SAP 12-SP2
                        SUSE Linux Enterprise Server for SAP 12-SP1
                        SUSE Linux Enterprise Server 12-SP2-LTSS
                        SUSE Linux Enterprise Server 12-SP1-LTSS
    ______________________________________________________________________________
    
       An update that fixes two vulnerabilities is now available.
    
    Description:
    
       This update for the Linux Kernel 3.12.74-60_64_115 fixes several issues.
    
       The following security issues were fixed:
    
       - CVE-2019-11487: The Linux kernel allowed page->_refcount reference count
         overflow, with resultant use-after-free issues, if about 140 GiB of RAM
         exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c,
         include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c,
         mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests
         (bsc#1133191).
       - CVE-2018-5390: Linux kernel could be forced to make very expensive calls
         to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming
         packet which can lead to a denial of service (bsc#1102682).
    
    
    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 Server for SAP 12-SP2:
    
          zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-1766=1
    
       - SUSE Linux Enterprise Server for SAP 12-SP1:
    
          zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1767=1
    
       - SUSE Linux Enterprise Server 12-SP2-LTSS:
    
          zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-1766=1
    
       - SUSE Linux Enterprise Server 12-SP1-LTSS:
    
          zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1767=1
    
    
    
    Package List:
    
       - SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
    
          kgraft-patch-4_4_121-92_114-default-2-2.1
    
       - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):
    
          kgraft-patch-3_12_74-60_64_115-default-2-2.1
          kgraft-patch-3_12_74-60_64_115-xen-2-2.1
    
       - SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):
    
          kgraft-patch-4_4_121-92_114-default-2-2.1
    
       - SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):
    
          kgraft-patch-3_12_74-60_64_115-default-2-2.1
          kgraft-patch-3_12_74-60_64_115-xen-2-2.1
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2018-5390.html
       https://www.suse.com/security/cve/CVE-2019-11487.html
       https://bugzilla.suse.com/1102682
       https://bugzilla.suse.com/1133191
    
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