SUSE: 2019:14089-1 important: the Linux Kernel

    Date18 Jun 2019
    CategorySuSE
    539
    Posted ByLinuxSecurity Advisories
    An update that solves 9 vulnerabilities and has 9 fixes is now available.
    
       SUSE Security Update: Security update for the Linux Kernel
    ______________________________________________________________________________
    
    Announcement ID:    SUSE-SU-2019:14089-1
    Rating:             important
    References:         #1110785 #1113769 #1119314 #1120326 #1120843 
                        #1120885 #1131295 #1131543 #1132374 #1132472 
                        #1132580 #1133188 #1134102 #1134729 #1134848 
                        #1137586 #923908 #939260 
    Cross-References:   CVE-2014-9710 CVE-2018-17972 CVE-2019-11190
                        CVE-2019-11477 CVE-2019-11478 CVE-2019-11479
                        CVE-2019-11486 CVE-2019-11884 CVE-2019-5489
                       
    Affected Products:
                        SUSE Linux Enterprise Server 11-SP4-LTSS
                        SUSE Linux Enterprise Server 11-EXTRA
                        SUSE Linux Enterprise Debuginfo 11-SP4
    ______________________________________________________________________________
    
       An update that solves 9 vulnerabilities and has 9 fixes is
       now available.
    
    Description:
    
    
       The SUSE Linux Enterprise 11 SP4 kernel version 3.0.101 was updated to
       receive various security and bugfixes.
    
       The following security bugs were fixed:
    
       - CVE-2019-11477: A sequence of SACKs may have been crafted such that one
         can trigger an integer overflow, leading to a kernel panic. (bsc#1137586)
    
       - CVE-2019-11478: It was possible to send a crafted sequence of SACKs
         which will fragment the TCP retransmission queue. An attacker may have
         been able to further exploit the fragmented queue to cause an expensive
         linked-list walk for subsequent SACKs received for that same TCP
         connection.
    
       - CVE-2019-11479: It was possible to send a crafted sequence of SACKs
         which will fragment the RACK send map. A remote attacker may be able to
         further exploit the fragmented send map to cause an expensive
         linked-list walk for subsequent SACKs received for that same TCP
         connection. This would have resulted in excess resource consumption due
         to low mss values.
    
       - CVE-2014-9710: The Btrfs implementation in the Linux kernel did not
         ensure that the visible xattr state is consistent with a requested
         replacement, which allowed local users to bypass intended ACL settings
         and gain privileges via standard filesystem operations (1) during an
         xattr-replacement time window, related to a race condition, or (2) after
         an xattr-replacement attempt that fails because the data did not fit
         (bnc#923908).
    
       - CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux
         kernel allowed local attackers to observe page cache access patterns of
         other processes on the same system, potentially allowing sniffing of
         secret information. (Fixing this affects the output of the fincore
         program.) Limited remote exploitation may be possible, as demonstrated
         by latency differences in accessing public files from an Apache HTTP
         Server (bnc#1120843).
    
       - CVE-2019-11190: The Linux kernel allowed local users to bypass ASLR on
         setuid programs (such as /bin/su) because install_exec_creds() is called
         too late in load_elf_binary() in fs/binfmt_elf.c, and thus the
         ptrace_may_access() check has a race condition when reading
         /proc/pid/stat (bnc#1131543).
    
       - CVE-2018-17972: An issue was discovered in the proc_pid_stack function
         in fs/proc/base.c in the Linux kernel It did not ensure that only root
         may inspect the kernel stack of an arbitrary task, allowing a local
         attacker to exploit racy stack unwinding and leak kernel task stack
         contents (bnc#1110785).
    
       - CVE-2019-11884: The do_hidp_sock_ioctl function in
         net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to
         obtain potentially sensitive information from kernel stack memory via a
         HIDPCONNADD command, because a name field may not end with a '\0'
         character (bnc#1134848).
    
       - CVE-2019-11486: The Siemens R3964 line discipline driver in
         drivers/tty/n_r3964.c in the Linux kernel had multiple race conditions
         (bnc#1133188).
    
       The following non-security bugs were fixed:
    
       - cifs: fix uninitialized memory access (bsc#1120326).
       - kabi: drop LINUX_MIB_TCPWQUEUETOOBIG snmp counter (bsc#1137586).
       - kernel: Add CEX7 toleration support (bsc#1131295).
       - net: ipsec: fix a kernel oops caused by reentrant workqueue
         (bsc#1119314).
       - tcp: add tcp_min_snd_mss sysctl (bsc#1137586).
       - tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (bsc#1137586).
       - tcp: limit payload size of sacked skbs (bsc#1137586).
       - tcp: tcp_fragment() should apply sane memory limits (bsc#1137586).
       - x86/MCE: Handle "nosmt" offlining properly (bsc#1134729).
       - xfs: do not cache inodes read through bulkstat (bsc#1134102).
    
    
    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 Server 11-SP4-LTSS:
    
          zypper in -t patch slessp4-kernel-source-14089=1
    
       - SUSE Linux Enterprise Server 11-EXTRA:
    
          zypper in -t patch slexsp3-kernel-source-14089=1
    
       - SUSE Linux Enterprise Debuginfo 11-SP4:
    
          zypper in -t patch dbgsp4-kernel-source-14089=1
    
    
    
    Package List:
    
       - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
    
          kernel-default-3.0.101-108.95.2
          kernel-default-base-3.0.101-108.95.2
          kernel-default-devel-3.0.101-108.95.2
          kernel-source-3.0.101-108.95.1
          kernel-syms-3.0.101-108.95.1
          kernel-trace-3.0.101-108.95.2
          kernel-trace-base-3.0.101-108.95.2
          kernel-trace-devel-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):
    
          kernel-ec2-3.0.101-108.95.2
          kernel-ec2-base-3.0.101-108.95.2
          kernel-ec2-devel-3.0.101-108.95.2
          kernel-xen-3.0.101-108.95.2
          kernel-xen-base-3.0.101-108.95.2
          kernel-xen-devel-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-SP4-LTSS (s390x):
    
          kernel-default-man-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-SP4-LTSS (ppc64):
    
          kernel-bigmem-3.0.101-108.95.2
          kernel-bigmem-base-3.0.101-108.95.2
          kernel-bigmem-devel-3.0.101-108.95.2
          kernel-ppc64-3.0.101-108.95.2
          kernel-ppc64-base-3.0.101-108.95.2
          kernel-ppc64-devel-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):
    
          kernel-pae-3.0.101-108.95.2
          kernel-pae-base-3.0.101-108.95.2
          kernel-pae-devel-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):
    
          kernel-default-extra-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):
    
          kernel-xen-extra-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-EXTRA (x86_64):
    
          kernel-trace-extra-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-EXTRA (ppc64):
    
          kernel-ppc64-extra-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Server 11-EXTRA (i586):
    
          kernel-pae-extra-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):
    
          kernel-default-debuginfo-3.0.101-108.95.2
          kernel-default-debugsource-3.0.101-108.95.2
          kernel-trace-debuginfo-3.0.101-108.95.2
          kernel-trace-debugsource-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 s390x x86_64):
    
          kernel-default-devel-debuginfo-3.0.101-108.95.2
          kernel-trace-devel-debuginfo-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):
    
          kernel-ec2-debuginfo-3.0.101-108.95.2
          kernel-ec2-debugsource-3.0.101-108.95.2
          kernel-xen-debuginfo-3.0.101-108.95.2
          kernel-xen-debugsource-3.0.101-108.95.2
          kernel-xen-devel-debuginfo-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Debuginfo 11-SP4 (ppc64):
    
          kernel-bigmem-debuginfo-3.0.101-108.95.2
          kernel-bigmem-debugsource-3.0.101-108.95.2
          kernel-ppc64-debuginfo-3.0.101-108.95.2
          kernel-ppc64-debugsource-3.0.101-108.95.2
    
       - SUSE Linux Enterprise Debuginfo 11-SP4 (i586):
    
          kernel-pae-debuginfo-3.0.101-108.95.2
          kernel-pae-debugsource-3.0.101-108.95.2
          kernel-pae-devel-debuginfo-3.0.101-108.95.2
    
    
    References:
    
       https://www.suse.com/security/cve/CVE-2014-9710.html
       https://www.suse.com/security/cve/CVE-2018-17972.html
       https://www.suse.com/security/cve/CVE-2019-11190.html
       https://www.suse.com/security/cve/CVE-2019-11477.html
       https://www.suse.com/security/cve/CVE-2019-11478.html
       https://www.suse.com/security/cve/CVE-2019-11479.html
       https://www.suse.com/security/cve/CVE-2019-11486.html
       https://www.suse.com/security/cve/CVE-2019-11884.html
       https://www.suse.com/security/cve/CVE-2019-5489.html
       https://bugzilla.suse.com/1110785
       https://bugzilla.suse.com/1113769
       https://bugzilla.suse.com/1119314
       https://bugzilla.suse.com/1120326
       https://bugzilla.suse.com/1120843
       https://bugzilla.suse.com/1120885
       https://bugzilla.suse.com/1131295
       https://bugzilla.suse.com/1131543
       https://bugzilla.suse.com/1132374
       https://bugzilla.suse.com/1132472
       https://bugzilla.suse.com/1132580
       https://bugzilla.suse.com/1133188
       https://bugzilla.suse.com/1134102
       https://bugzilla.suse.com/1134729
       https://bugzilla.suse.com/1134848
       https://bugzilla.suse.com/1137586
       https://bugzilla.suse.com/923908
       https://bugzilla.suse.com/939260
    
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