openSUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    openSUSE-SU-2017:0458-1
Rating:             important
References:         #1003077 #1007886 #1009969 #1010444 #1011820 
                    #1013273 #1013531 #1013540 #1013542 #1017589 
                    #1017710 #1019658 #1019660 #1019784 #1020214 
                    #1020381 #1021258 #983348 #987333 #987576 
                    
Cross-References:   CVE-2016-10088 CVE-2016-10147 CVE-2016-7117
                    CVE-2016-7917 CVE-2016-8645 CVE-2016-9793
                    CVE-2016-9806 CVE-2017-5551
Affected Products:
                    openSUSE Leap 42.1
______________________________________________________________________________

   An update that solves 8 vulnerabilities and has 12 fixes is
   now available.

Description:


   The openSUSE Leap 42.1 kernel to 4.1.38 to receive various security and
   bugfixes.

   The following security bugs were fixed:

   - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg
     function in net/socket.c in the Linux kernel allowed remote attackers to
     execute arbitrary code via vectors involving a recvmmsg system call that
     is mishandled during error processing (bnc#1003077).
   - CVE-2017-5551: tmpfs: Fixed a bug that could have allowed users to set
     setgid bits on files they don't down (bsc#1021258).
   - CVE-2016-10147: crypto/mcryptd.c in the Linux kernel allowed local users     to cause a denial of service (NULL pointer dereference and system crash)
     by using an AF_ALG socket with an incompatible algorithm, as
     demonstrated by mcryptd(md5) (bnc#1020381).
   - CVE-2016-10088: The sg implementation in the Linux kernel did not
     properly restrict write operations in situations where the KERNEL_DS
     option is set, which allowed local users to read or write to arbitrary
     kernel memory locations or cause a denial of service (use-after-free) by
     leveraging access to a /dev/sg device, related to block/bsg.c and
     drivers/scsi/sg.c.  NOTE: this vulnerability exists because of an
     incomplete fix for CVE-2016-9576 (bnc#1017710).
   - CVE-2016-7917: The nfnetlink_rcv_batch function in
     net/netfilter/nfnetlink.c in the Linux kernel did not check whether a
     batch message's length field is large enough, which allowed local users     to obtain sensitive information from kernel memory or cause a denial of
     service (infinite loop or out-of-bounds read) by leveraging the
     CAP_NET_ADMIN capability (bnc#1010444).
   - CVE-2016-8645: The TCP stack in the Linux kernel mishandled skb
     truncation, which allowed local users to cause a denial of service
     (system crash) via a crafted application that made sendto system calls,
     related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c (bnc#1009969).
   - CVE-2016-9806: Race condition in the netlink_dump function in
     net/netlink/af_netlink.c in the Linux kernel allowed local users to
     cause a denial of service (double free) or possibly have unspecified
     other impact via a crafted application that made sendmsg system calls,
     leading to a free operation associated with a new dump that started
     earlier than anticipated (bnc#1013540 1017589).
   - CVE-2016-9793: The sock_setsockopt function in net/core/sock.c in the
     Linux kernel mishandled negative values of sk_sndbuf and sk_rcvbuf,
     which allowed local users to cause a denial of service (memory
     corruption and system crash) or possibly have unspecified other impact
     by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt
     system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option
     (bnc#1013531 1013542).

   The following non-security bugs were fixed:

   - PCI: generic: Fix pci_remap_iospace() failure path (bsc#1019658).
   - bcache: partition support: add 16 minors per bcacheN device
     (bsc#1019784).
   - bnx2x: Correct ringparam estimate when DOWN (bsc#1020214).
   - clk: xgene: Do not call __pa on ioremaped address (bsc#1019660).
   - kABI workaround for 4.1.37 mount changes (stable-4.1.37).
   - kABI: reintroduce sk_filter (bsc#1009969).
   - kabi/severities: Ignore inode_change_ok change It's renamed in 4.1.37 to
     setattr_prepare()
   - mpi: Fix NULL ptr dereference in mpi_powm() [ver #3] (bsc#1011820).
   - net: introduce __sock_queue_rcv_skb() function (bsc#1009969).
   - netback: correct array index (bsc#983348).
   - netfront: do not truncate grant references.
   - netfront: use correct linear area after linearizing an skb (bsc#1007886).
   - reiserfs: fix race in prealloc discard (bsc#987576).
   - rose: limit sk_filter trim to payload (bsc#1009969).
   - scsi: bfa: Increase requested firmware version to 3.2.5.1 (bsc#1013273).
   - xenbus: correctly signal errors from xenstored_local_init() (luckily
     none so far).
   - xenbus: do not invoke ->is_ready() for most device states (bsc#987333).


Patch Instructions:

   To install this openSUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - openSUSE Leap 42.1:

      zypper in -t patch openSUSE-2017-246=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - openSUSE Leap 42.1 (i686 x86_64):

      kernel-debug-4.1.38-47.1
      kernel-debug-base-4.1.38-47.1
      kernel-debug-base-debuginfo-4.1.38-47.1
      kernel-debug-debuginfo-4.1.38-47.1
      kernel-debug-debugsource-4.1.38-47.1
      kernel-debug-devel-4.1.38-47.1
      kernel-debug-devel-debuginfo-4.1.38-47.1
      kernel-ec2-4.1.38-47.1
      kernel-ec2-base-4.1.38-47.1
      kernel-ec2-base-debuginfo-4.1.38-47.1
      kernel-ec2-debuginfo-4.1.38-47.1
      kernel-ec2-debugsource-4.1.38-47.1
      kernel-ec2-devel-4.1.38-47.1
      kernel-pv-4.1.38-47.1
      kernel-pv-base-4.1.38-47.1
      kernel-pv-base-debuginfo-4.1.38-47.1
      kernel-pv-debuginfo-4.1.38-47.1
      kernel-pv-debugsource-4.1.38-47.1
      kernel-pv-devel-4.1.38-47.1
      kernel-vanilla-4.1.38-47.1
      kernel-vanilla-debuginfo-4.1.38-47.1
      kernel-vanilla-debugsource-4.1.38-47.1
      kernel-vanilla-devel-4.1.38-47.1
      kernel-xen-4.1.38-47.1
      kernel-xen-base-4.1.38-47.1
      kernel-xen-base-debuginfo-4.1.38-47.1
      kernel-xen-debuginfo-4.1.38-47.1
      kernel-xen-debugsource-4.1.38-47.1
      kernel-xen-devel-4.1.38-47.1

   - openSUSE Leap 42.1 (i586 x86_64):

      kernel-default-4.1.38-47.1
      kernel-default-base-4.1.38-47.1
      kernel-default-base-debuginfo-4.1.38-47.1
      kernel-default-debuginfo-4.1.38-47.1
      kernel-default-debugsource-4.1.38-47.1
      kernel-default-devel-4.1.38-47.1
      kernel-obs-build-4.1.38-47.3
      kernel-obs-build-debugsource-4.1.38-47.3
      kernel-obs-qa-4.1.38-47.1
      kernel-syms-4.1.38-47.1

   - openSUSE Leap 42.1 (noarch):

      kernel-devel-4.1.38-47.1
      kernel-docs-4.1.38-47.2
      kernel-docs-html-4.1.38-47.2
      kernel-docs-pdf-4.1.38-47.2
      kernel-macros-4.1.38-47.1
      kernel-source-4.1.38-47.1
      kernel-source-vanilla-4.1.38-47.1

   - openSUSE Leap 42.1 (i686):

      kernel-pae-4.1.38-47.1
      kernel-pae-base-4.1.38-47.1
      kernel-pae-base-debuginfo-4.1.38-47.1
      kernel-pae-debuginfo-4.1.38-47.1
      kernel-pae-debugsource-4.1.38-47.1
      kernel-pae-devel-4.1.38-47.1


References:

   https://www.suse.com/security/cve/CVE-2016-10088.html
   https://www.suse.com/security/cve/CVE-2016-10147.html
   https://www.suse.com/security/cve/CVE-2016-7117.html
   https://www.suse.com/security/cve/CVE-2016-7917.html
   https://www.suse.com/security/cve/CVE-2016-8645.html
   https://www.suse.com/security/cve/CVE-2016-9793.html
   https://www.suse.com/security/cve/CVE-2016-9806.html
   https://www.suse.com/security/cve/CVE-2017-5551.html
   https://bugzilla.suse.com/1003077
   https://bugzilla.suse.com/1007886
   https://bugzilla.suse.com/1009969
   https://bugzilla.suse.com/1010444
   https://bugzilla.suse.com/1011820
   https://bugzilla.suse.com/1013273
   https://bugzilla.suse.com/1013531
   https://bugzilla.suse.com/1013540
   https://bugzilla.suse.com/1013542
   https://bugzilla.suse.com/1017589
   https://bugzilla.suse.com/1017710
   https://bugzilla.suse.com/1019658
   https://bugzilla.suse.com/1019660
   https://bugzilla.suse.com/1019784
   https://bugzilla.suse.com/1020214
   https://bugzilla.suse.com/1020381
   https://bugzilla.suse.com/1021258
   https://bugzilla.suse.com/983348
   https://bugzilla.suse.com/987333
   https://bugzilla.suse.com/987576

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