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[Bug 1686099] Re: connection flood to port 445 on mounting cifs volume under kernel

 

This bug was fixed in the package linux - 4.8.0-58.63

---------------
linux (4.8.0-58.63) yakkety; urgency=low

  * linux: 4.8.0-58.63 -proposed tracker (LP: #1700533)

  * CVE-2017-1000364
    - Revert "UBUNTU: SAUCE: mm: Only expand stack if guard area is hit"
    - Revert "mm: do not collapse stack gap into THP"
    - Revert "mm: enlarge stack guard gap"
    - mm: vma_adjust: remove superfluous confusing update in remove_next == 1 case
    - mm: larger stack guard gap, between vmas
    - mm: fix new crash in unmapped_area_topdown()
    - Allow stack to grow up to address space limit

linux (4.8.0-57.62) yakkety; urgency=low

  * linux: 4.8.0-57.62 -proposed tracker (LP: #1699035)

  * CVE-2017-1000364
    - SAUCE: mm: Only expand stack if guard area is hit

  * CVE-2017-7374
    - fscrypt: remove broken support for detecting keyring key revocation

  * CVE-2017-100363
    - char: lp: fix possible integer overflow in lp_setup()

  * CVE-2017-9242
    - ipv6: fix out of bound writes in __ip6_append_data()

  * CVE-2017-9075
    - sctp: do not inherit ipv6_{mc|ac|fl}_list from parent

  * CVE-2017-9074
    - ipv6: Prevent overrun when parsing v6 header options

  * CVE-2017-9076
    - ipv6/dccp: do not inherit ipv6_mc_list from parent

  * CVE-2017-9077
    - ipv6/dccp: do not inherit ipv6_mc_list from parent

  * CVE-2017-8890
    - dccp/tcp: do not inherit mc_list from parent

  * extend-diff-ignore should use exact matches (LP: #1693504)
    - [Packaging] exact extend-diff-ignore matches

  * APST quirk needed for Intel NVMe (LP: #1686592)
    - nvme: Quirk APST on Intel 600P/P3100 devices

  * regression: the 4.8 hwe kernel does not create the
    /sys/block/*/device/enclosure_device:* symlinks (LP: #1691899)
    - scsi: ses: Fix SAS device detection in enclosure

  * datapath: Add missing case OVS_TUNNEL_KEY_ATTR_PAD (LP: #1676679)
    - openvswitch: Add missing case OVS_TUNNEL_KEY_ATTR_PAD

  * connection flood to port 445 on mounting cifs volume under kernel
    (LP: #1686099)
    - cifs: Do not send echoes before Negotiate is complete

  * Support IPMI system interface on Cavium ThunderX (LP: #1688132)
    - i2c: octeon: Rename driver to prepare for split
    - i2c: octeon: Split the driver into two parts
    - [Config] CONFIG_I2C_THUNDERX=m
    - i2c: thunderx: Add i2c driver for ThunderX SOC
    - i2c: thunderx: Add SMBUS alert support
    - i2c: octeon,thunderx: Move register offsets to struct
    - i2c: octeon: Sort include files alphabetically
    - i2c: octeon: Use booleon values for booleon variables
    - i2c: octeon: thunderx: Add MAINTAINERS entry
    - i2c: octeon: Fix set SCL recovery function
    - i2c: octeon: Avoid sending STOP during recovery
    - i2c: octeon: Fix high-level controller status check
    - i2c: octeon: thunderx: TWSI software reset in recovery
    - i2c: octeon: thunderx: Remove double-check after interrupt
    - i2c: octeon: thunderx: Limit register access retries
    - i2c: thunderx: Enable HWMON class probing

  * CVE-2017-5577
    - drm/vc4: Return -EINVAL on the overflow checks failing.

  * Merlin SGMII fail on Ubuntu Xenial HWE kernel (LP: #1686305)
    - net: phy: marvell: fix Marvell 88E1512 used in SGMII mode
    - drivers: net: phy: xgene: Fix mdio write

  * Keyboard backlight control does not work on some dell laptops.
    (LP: #1693126)
    - platform/x86: dell-laptop: Add Latitude 7480 and others to the DMI whitelist
    - platform/x86: dell-laptop: Add keyboard backlight timeout AC settings

  * exec'ing a setuid binary from a threaded program sometimes fails to setuid
    (LP: #1672819)
    - SAUCE: exec: ensure file system accounting in check_unsafe_exec is correct

  * CVE-2017-7294
    - drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl()

 -- Stefan Bader <stefan.bader@xxxxxxxxxxxxx>  Mon, 26 Jun 2017 17:31:13
+0200

** Changed in: linux (Ubuntu Yakkety)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-1000364

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-100363

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5577

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-7294

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-7374

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-8890

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-9074

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-9075

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-9076

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-9077

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-9242

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https://bugs.launchpad.net/bugs/1686099

Title:
  connection flood to port 445 on mounting cifs volume under kernel

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Fix Committed

Bug description:
  This is identical to the bug reported on the Debian kernel list, only
  I'm running 4.4.0, not 4.[89].0

  After about 15 mintues, the cifsd daemon starts flooding echo requests
  on port 445 to the windows server causing a constant 1MB/s load
  (around 10,000 packets per second) that eventually leads to system
  instability that forces a reboot to correct.  This is repeatable and
  as far as I know started about a week ago (possibly with the
  installation of 4.4.0-75).

  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856843

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