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SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID: SUSE-SU-2016:2507-1
Rating: important
References: #966467 #970135 #971949 #988675 #990970 #991934
#992224 #993507 #994136 #994421 #994625 #994761
#994772 #994775 #995785 #995789 #995792 #997731

Cross-References: CVE-2016-6258 CVE-2016-6833 CVE-2016-6834
CVE-2016-6835 CVE-2016-6836 CVE-2016-6888
CVE-2016-7092 CVE-2016-7093 CVE-2016-7094
CVE-2016-7154
Affected Products:
SUSE Linux Enterprise Software Development Kit 11-SP4
SUSE Linux Enterprise Server 11-SP4
SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

An update that solves 10 vulnerabilities and has 8 fixes is
now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:
– CVE-2016-7092: The get_page_from_l3e function in arch/x86/mm.c in Xen
allowed local 32-bit PV guest OS administrators to gain host OS
privileges via vectors related to L3 recursive pagetables (bsc#995785)
– CVE-2016-7093: Xen allowed local HVM guest OS administrators to
overwrite hypervisor memory and consequently gain host OS privileges by
leveraging mishandling of instruction pointer truncation during
emulation (bsc#995789)
– CVE-2016-7094: Buffer overflow in Xen allowed local x86 HVM guest OS
administrators on guests running with shadow paging to cause a denial of
service via a pagetable update (bsc#995792)
– CVE-2016-7154: Use-after-free vulnerability in the FIFO event channel
code in Xen allowed local guest OS administrators to cause a denial of
service (host crash) and possibly execute arbitrary code or obtain
sensitive information via an invalid guest frame number (bsc#997731)
– CVE-2016-6836: VMWARE VMXNET3 NIC device allowed privileged user inside
the guest to leak information. It occured while processing transmit(tx)
queue, when it reaches the end of packet (bsc#994761)
– CVE-2016-6888: A integer overflow int the VMWARE VMXNET3 NIC device
support, during the initialisation of new packets in the device, could
have allowed a privileged user inside guest to crash the Qemu instance
resulting in DoS (bsc#994772)
– CVE-2016-6833: A use-after-free issue in the VMWARE VMXNET3 NIC device
support allowed privileged user inside guest to crash the Qemu instance
resulting in DoS (bsc#994775)
– CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support,
causing an OOB read access (bsc#994625)
– CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE
VMXNET3 NIC device support allowed privileged user inside guest to crash
the Qemu instance resulting in DoS (bsc#994421)
– CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed
local 32-bit PV guest OS administrators to gain host OS privileges by
leveraging fast-paths for updating pagetable entries (bsc#988675)

These non-security issues were fixed:
– bsc#993507: virsh detach-disk failing to detach disk
– bsc#991934: Xen hypervisor crash in csched_acct
– bsc#992224: During boot of Xen Hypervisor, Failed to get contiguous
memory for DMA
– bsc#970135: New virtualization project clock test randomly fails on Xen
– bsc#994136: Unplug also SCSI disks in qemu-xen-traditional for upstream
unplug protocol
– bsc#994136: xen_platform: unplug also SCSI disks in qemu-xen
– bsc#971949: xl: Support (by ignoring) xl migrate –live. xl migrations
are always live
– bsc#990970: Add PMU support for Intel E7-8867 v4 (fam=6, model=79)
– bsc#966467: Live Migration SLES 11 SP3 to SP4 on AMD

Patch Instructions:

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

– SUSE Linux Enterprise Software Development Kit 11-SP4:

zypper in -t patch sdksp4-xen-12782=1

– SUSE Linux Enterprise Server 11-SP4:

zypper in -t patch slessp4-xen-12782=1

– SUSE Linux Enterprise Debuginfo 11-SP4:

zypper in -t patch dbgsp4-xen-12782=1

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

Package List:

– SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

xen-devel-4.4.4_08-40.2

– SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

xen-kmp-default-4.4.4_08_3.0.101_80-40.2
xen-libs-4.4.4_08-40.2
xen-tools-domU-4.4.4_08-40.2

– SUSE Linux Enterprise Server 11-SP4 (x86_64):

xen-4.4.4_08-40.2
xen-doc-html-4.4.4_08-40.2
xen-libs-32bit-4.4.4_08-40.2
xen-tools-4.4.4_08-40.2

– SUSE Linux Enterprise Server 11-SP4 (i586):

xen-kmp-pae-4.4.4_08_3.0.101_80-40.2

– SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

xen-debuginfo-4.4.4_08-40.2
xen-debugsource-4.4.4_08-40.2

References:

https://www.suse.com/security/cve/CVE-2016-6258.html
https://www.suse.com/security/cve/CVE-2016-6833.html
https://www.suse.com/security/cve/CVE-2016-6834.html
https://www.suse.com/security/cve/CVE-2016-6835.html
https://www.suse.com/security/cve/CVE-2016-6836.html
https://www.suse.com/security/cve/CVE-2016-6888.html
https://www.suse.com/security/cve/CVE-2016-7092.html
https://www.suse.com/security/cve/CVE-2016-7093.html
https://www.suse.com/security/cve/CVE-2016-7094.html
https://www.suse.com/security/cve/CVE-2016-7154.html
https://bugzilla.suse.com/966467
https://bugzilla.suse.com/970135
https://bugzilla.suse.com/971949
https://bugzilla.suse.com/988675
https://bugzilla.suse.com/990970
https://bugzilla.suse.com/991934
https://bugzilla.suse.com/992224
https://bugzilla.suse.com/993507
https://bugzilla.suse.com/994136
https://bugzilla.suse.com/994421
https://bugzilla.suse.com/994625
https://bugzilla.suse.com/994761
https://bugzilla.suse.com/994772
https://bugzilla.suse.com/994775
https://bugzilla.suse.com/995785
https://bugzilla.suse.com/995789
https://bugzilla.suse.com/995792
https://bugzilla.suse.com/997731

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   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2528-1
Rating:             important
References:         #973188 #974038 #975130 #975138 #978164 #978295
                    #980716 #980724 #981264 #982960 #983984 #988675
                    #995785 #995792
Cross-References:   CVE-2014-3615 CVE-2014-3672 CVE-2016-3158
                    CVE-2016-3159 CVE-2016-3710 CVE-2016-3960
                    CVE-2016-4001 CVE-2016-4002 CVE-2016-4439
                    CVE-2016-4441 CVE-2016-4480 CVE-2016-5238
                    CVE-2016-5338 CVE-2016-6258 CVE-2016-7092
                    CVE-2016-7094
Affected Products:
                    SUSE Linux Enterprise Server 11-SP2-LTSS
______________________________________________________________________________

   An update that fixes 16 vulnerabilities is now available.

Description:

   This update for xen fixes several issues.

   These security issues were fixed:
   – CVE-2016-7094: Buffer overflow in Xen allowed local x86 HVM guest OS
     administrators on guests running with shadow paging to cause a denial of
     service via a pagetable update (bsc#995792)
   – CVE-2016-7092: The get_page_from_l3e function in arch/x86/mm.c in Xen
     allowed local 32-bit PV guest OS administrators to gain host OS
     privileges via vectors related to L3 recursive pagetables (bsc#995785)
   – CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed
     local 32-bit PV guest OS administrators to gain host OS privileges by
     leveraging fast-paths for updating pagetable entries (bsc#988675)
   – CVE-2016-5338: The (1) esp_reg_read and (2) esp_reg_write functions
     allowed local guest OS administrators to cause a denial of service (QEMU
     process crash) or execute arbitrary code on the host via vectors related
     to the information transfer buffer (bsc#983984)
   – CVE-2016-5238: The get_cmd function in hw/scsi/esp.c might have allowed
     local guest OS administrators to cause a denial of service
     (out-of-bounds write and QEMU process crash) via vectors related to
     reading from the information transfer buffer in non-DMA mode (bsc#982960)
   – CVE-2014-3672: The qemu implementation in libvirt Xen allowed local
     guest OS users to cause a denial of service (host disk consumption) by
     writing to stdout or stderr (bsc#981264)
   – CVE-2016-4441: The get_cmd function in the 53C9X Fast SCSI Controller
     (FSC) support did not properly check DMA length, which allowed local
     guest OS administrators to cause a denial of service (out-of-bounds
     write and QEMU process crash) via unspecified vectors, involving an SCSI
     command (bsc#980724)
   – CVE-2016-4439: The esp_reg_write function in the 53C9X Fast SCSI
     Controller (FSC) support did not properly check command buffer length,
     which allowed local guest OS administrators to cause a denial of service
     (out-of-bounds write and QEMU process crash) or potentially execute
     arbitrary code on the host via unspecified vectors (bsc#980716)
   – CVE-2016-3710: The VGA module improperly performed bounds checking on
     banked access to video memory, which allowed local guest OS
     administrators to execute arbitrary code on the host by changing access
     modes after setting the bank register, aka the “Dark Portal” issue
     (bsc#978164)
   – CVE-2016-4480: The guest_walk_tables function in
     arch/x86/mm/guest_walk.c in Xen did not properly handle the Page Size
     (PS) page table entry bit at the L4 and L3 page table levels, which
     might have allowed local guest OS users to gain privileges via a crafted
     mapping of memory (bsc#978295)
   – CVE-2016-3960: Integer overflow in the x86 shadow pagetable code allowed
     local guest OS users to cause a denial of service (host crash) or
     possibly gain privileges by shadowing a superpage mapping (bsc#974038)
   – CVE-2016-3158: The xrstor function did not properly handle writes to the
     hardware FSW.ES bit when running on AMD64 processors, which allowed
     local guest OS users to obtain sensitive register content information
     from another guest by leveraging pending exception and mask bits
     (bsc#973188)
   – CVE-2016-4001: Buffer overflow in the stellaris_enet_receive function,
     when the Stellaris ethernet controller is configured to accept large
     packets, allowed remote attackers to cause a denial of service (QEMU
     crash) via a large packet (bsc#975130)
   – CVE-2016-4002: Buffer overflow in the mipsnet_receive function, when the
     guest NIC is configured to accept large packets, allowed remote
     attackers to cause a denial of service (memory corruption and QEMU
     crash) or possibly execute arbitrary code via a packet larger than 1514
     bytes (bsc#975138)

Patch Instructions:

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

   – SUSE Linux Enterprise Server 11-SP2-LTSS:

      zypper in -t patch slessp2-xen-12786=1

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

Package List:

   – SUSE Linux Enterprise Server 11-SP2-LTSS (i586 x86_64):

      xen-devel-4.1.6_08-29.1
      xen-kmp-default-4.1.6_08_3.0.101_0.7.40-29.1
      xen-kmp-trace-4.1.6_08_3.0.101_0.7.40-29.1
      xen-libs-4.1.6_08-29.1
      xen-tools-domU-4.1.6_08-29.1

   – SUSE Linux Enterprise Server 11-SP2-LTSS (x86_64):

      xen-4.1.6_08-29.1
      xen-doc-html-4.1.6_08-29.1
      xen-doc-pdf-4.1.6_08-29.1
      xen-libs-32bit-4.1.6_08-29.1
      xen-tools-4.1.6_08-29.1

   – SUSE Linux Enterprise Server 11-SP2-LTSS (i586):

      xen-kmp-pae-4.1.6_08_3.0.101_0.7.40-29.1

References:

   https://www.suse.com/security/cve/CVE-2014-3615.html
   https://www.suse.com/security/cve/CVE-2014-3672.html
   https://www.suse.com/security/cve/CVE-2016-3158.html
   https://www.suse.com/security/cve/CVE-2016-3159.html
   https://www.suse.com/security/cve/CVE-2016-3710.html
   https://www.suse.com/security/cve/CVE-2016-3960.html
   https://www.suse.com/security/cve/CVE-2016-4001.html
   https://www.suse.com/security/cve/CVE-2016-4002.html
   https://www.suse.com/security/cve/CVE-2016-4439.html
   https://www.suse.com/security/cve/CVE-2016-4441.html
   https://www.suse.com/security/cve/CVE-2016-4480.html
   https://www.suse.com/security/cve/CVE-2016-5238.html
   https://www.suse.com/security/cve/CVE-2016-5338.html
   https://www.suse.com/security/cve/CVE-2016-6258.html
   https://www.suse.com/security/cve/CVE-2016-7092.html
   https://www.suse.com/security/cve/CVE-2016-7094.html
   https://bugzilla.suse.com/973188
   https://bugzilla.suse.com/974038
   https://bugzilla.suse.com/975130
   https://bugzilla.suse.com/975138
   https://bugzilla.suse.com/978164
   https://bugzilla.suse.com/978295
   https://bugzilla.suse.com/980716
   https://bugzilla.suse.com/980724
   https://bugzilla.suse.com/981264
   https://bugzilla.suse.com/982960
   https://bugzilla.suse.com/983984
   https://bugzilla.suse.com/988675
   https://bugzilla.suse.com/995785
   https://bugzilla.suse.com/995792

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