ESB-2018.1028 - [Ubuntu] kernel: Multiple vulnerabilities 2018-04-05

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1028
                       Linux kernel vulnerabilities
                               5 April 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Root Compromise        -- Existing Account
                   Access Privileged Data -- Existing Account
                   Denial of Service      -- Existing Account
                   Unauthorised Access    -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000026 CVE-2018-8043 CVE-2018-7492
                   CVE-2018-6927 CVE-2018-5344 CVE-2018-5333
                   CVE-2018-5332 CVE-2017-1000407 CVE-2017-18208
                   CVE-2017-18204 CVE-2017-18203 CVE-2017-18075
                   CVE-2017-17862 CVE-2017-17807 CVE-2017-17806
                   CVE-2017-17805 CVE-2017-17741 CVE-2017-17558
                   CVE-2017-17450 CVE-2017-17449 CVE-2017-17448
                   CVE-2017-16995 CVE-2017-16994 CVE-2017-16914
                   CVE-2017-16913 CVE-2017-16912 CVE-2017-16911
                   CVE-2017-16650 CVE-2017-16649 CVE-2017-16646
                   CVE-2017-16645 CVE-2017-16537 CVE-2017-16536
                   CVE-2017-16532 CVE-2017-16528 CVE-2017-15129
                   CVE-2017-12762 CVE-2017-11472 CVE-2017-11089
                   CVE-2017-7518 CVE-2017-5715 CVE-2017-0861

Reference:         ESB-2018.0991
                   ESB-2018.0962
                   ESB-2018.0923
                   ESB-2018.0721
                   ESB-2018.0577

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3619-1
   http://www.ubuntu.com/usn/usn-3620-1
   http://www.ubuntu.com/usn/usn-3620-2

Comment: This bulletin contains three (3) Ubuntu security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

==========================================================================
Ubuntu Security Notice USN-3619-1
April 04, 2018

linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- - linux: Linux kernel
- - linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- - linux-kvm: Linux kernel for cloud environments
- - linux-raspi2: Linux kernel for Raspberry Pi 2
- - linux-snapdragon: Linux kernel for Snapdragon processors

Details:

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation
in the Linux kernel improperly performed sign extension in some situations.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-16995)

It was discovered that a race condition leading to a use-after-free
vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2017-0861)

It was discovered that the KVM implementation in the Linux kernel allowed
passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM
could use this to cause a denial of service (system crash) in the host OS.
(CVE-2017-1000407)

It was discovered that an information disclosure vulnerability existed in
the ACPI implementation of the Linux kernel. A local attacker could use
this to expose sensitive information (kernel memory addresses).
(CVE-2017-11472)

It was discovered that a use-after-free vulnerability existed in the
network namespaces implementation in the Linux kernel. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2017-15129)

It was discovered that the Advanced Linux Sound Architecture (ALSA)
subsystem in the Linux kernel contained a use-after-free when handling
device removal. A physically proximate attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2017-16528)

Andrey Konovalov discovered that the usbtest device driver in the Linux
kernel did not properly validate endpoint metadata. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2017-16532)

Andrey Konovalov discovered that the Conexant cx231xx USB video capture
driver in the Linux kernel did not properly validate interface descriptors.
A physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2017-16536)

Andrey Konovalov discovered that the SoundGraph iMON USB driver in the
Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-16537)

Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver
in the Linux kernel did not properly validate device descriptors. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2017-16645)

Andrey Konovalov discovered that the DiBcom DiB0700 USB DVB driver in the
Linux kernel did not properly handle detach events. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2017-16646)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not
properly validate device descriptors. A physically proximate attacker could
use this to cause a denial of service (system crash). (CVE-2017-16649)

Andrey Konovalov discovered that the QMI WWAN USB driver did not properly
validate device descriptors. A physically proximate attacker could use this
to cause a denial of service (system crash). (CVE-2017-16650)

It was discovered that the USB Virtual Host Controller Interface (VHCI)
driver in the Linux kernel contained an information disclosure vulnerability.
A physically proximate attacker could use this to expose sensitive
information (kernel memory). (CVE-2017-16911)

It was discovered that the USB over IP implementation in the Linux kernel
did not validate endpoint numbers. A remote attacker could use this to
cause a denial of service (system crash). (CVE-2017-16912)

It was discovered that the USB over IP implementation in the Linux kernel
did not properly validate CMD_SUBMIT packets. A remote attacker could use
this to cause a denial of service (excessive memory consumption).
(CVE-2017-16913)

It was discovered that the USB over IP implementation in the Linux kernel
contained a NULL pointer dereference error. A remote attacker could use
this to cause a denial of service (system crash). (CVE-2017-16914)

It was discovered that the HugeTLB component of the Linux kernel did not
properly handle holes in hugetlb ranges. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2017-16994)

It was discovered that the netfilter component of the Linux did not
properly restrict access to the connection tracking helpers list. A local
attacker could use this to bypass intended access restrictions.
(CVE-2017-17448)

It was discovered that the netlink subsystem in the Linux kernel did not
properly restrict observations of netlink messages to the appropriate net
namespace. A local attacker could use this to expose sensitive information
(kernel netlink traffic). (CVE-2017-17449)

It was discovered that the netfilter passive OS fingerprinting (xt_osf)
module did not properly perform access control checks. A local attacker
could improperly modify the system-wide OS fingerprint list.
(CVE-2017-17450)

It was discovered that the core USB subsystem in the Linux kernel did not
validate the number of configurations and interfaces in a device. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2017-17558)

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
contained an out-of-bounds read when handling memory-mapped I/O. A local
attacker could use this to expose sensitive information. (CVE-2017-17741)

It was discovered that the Salsa20 encryption algorithm implementations in
the Linux kernel did not properly handle zero-length inputs. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-17805)

It was discovered that the HMAC implementation did not validate the state
of the underlying cryptographic hash algorithm. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-17806)

It was discovered that the keyring implementation in the Linux kernel did
not properly check permissions when a key request was performed on a
task's' default keyring. A local attacker could use this to add keys to
unauthorized keyrings. (CVE-2017-17807)

Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel contained a branch-pruning logic issue
around unreachable code. A local attacker could use this to cause a denial
of service. (CVE-2017-17862)

It was discovered that the parallel cryptography component of the Linux
kernel incorrectly freed kernel memory. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-18075)

It was discovered that a race condition existed in the Device Mapper
component of the Linux kernel. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-18203)

It was discovered that a race condition existed in the OCFS2 file system
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (kernel deadlock). (CVE-2017-18204)

It was discovered that an infinite loop could occur in the the madvise(2)
implementation in the Linux kernel in certain circumstances. A local
attacker could use this to cause a denial of service (system hang).
(CVE-2017-18208)

Andy Lutomirski discovered that the KVM implementation in the Linux kernel
was vulnerable to a debug exception error when single-stepping through a
syscall. A local attacker in a non-Linux guest vm could possibly use this
to gain administrative privileges in the guest vm. (CVE-2017-7518)

It was discovered that the Broadcom NetXtremeII ethernet driver in the
Linux kernel did not properly validate Generic Segment Offload (GSO) packet
sizes. An attacker could use this to cause a denial of service (interface
unavailability). (CVE-2018-1000026)

It was discovered that the Reliable Datagram Socket (RDS)
implementation in the Linux kernel contained an out-of-bounds write
during RDMA page allocation. An attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2018-5332)

Mohamed Ghannam discovered a null pointer dereference in the RDS (Reliable
Datagram Sockets) protocol implementation of the Linux kernel. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2018-5333)

è\x{140}\x{131}é¾\x{153}é£\x{158} discovered that a race condition existed in loop block device
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-5344)

It was discovered that an integer overflow error existed in the futex
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash). (CVE-2018-6927)

It was discovered that a NULL pointer dereference existed in the RDS
(Reliable Datagram Sockets) protocol implementation in the Linux kernel. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2018-7492)

It was discovered that the Broadcom UniMAC MDIO bus controller driver in
the Linux kernel did not properly validate device resources. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2018-8043)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  linux-image-4.4.0-1020-kvm      4.4.0-1020.25
  linux-image-4.4.0-1054-aws      4.4.0-1054.63
  linux-image-4.4.0-1086-raspi2   4.4.0-1086.94
  linux-image-4.4.0-1088-snapdragon  4.4.0-1088.93
  linux-image-4.4.0-119-generic   4.4.0-119.143
  linux-image-4.4.0-119-generic-lpae  4.4.0-119.143
  linux-image-4.4.0-119-lowlatency  4.4.0-119.143
  linux-image-4.4.0-119-powerpc-e500mc  4.4.0-119.143
  linux-image-4.4.0-119-powerpc-smp  4.4.0-119.143
  linux-image-4.4.0-119-powerpc64-emb  4.4.0-119.143
  linux-image-4.4.0-119-powerpc64-smp  4.4.0-119.143
  linux-image-aws                 4.4.0.1054.56
  linux-image-generic             4.4.0.119.125
  linux-image-generic-lpae        4.4.0.119.125
  linux-image-kvm                 4.4.0.1020.19
  linux-image-lowlatency          4.4.0.119.125
  linux-image-powerpc-e500mc      4.4.0.119.125
  linux-image-powerpc-smp         4.4.0.119.125
  linux-image-powerpc64-emb       4.4.0.119.125
  linux-image-powerpc64-smp       4.4.0.119.125
  linux-image-raspi2              4.4.0.1086.86
  linux-image-snapdragon          4.4.0.1088.80

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://usn.ubuntu.com/usn/usn-3619-1
  CVE-2017-0861, CVE-2017-1000407, CVE-2017-11472, CVE-2017-15129,
  CVE-2017-16528, CVE-2017-16532, CVE-2017-16536, CVE-2017-16537,
  CVE-2017-16645, CVE-2017-16646, CVE-2017-16649, CVE-2017-16650,
  CVE-2017-16911, CVE-2017-16912, CVE-2017-16913, CVE-2017-16914,
  CVE-2017-16994, CVE-2017-16995, CVE-2017-17448, CVE-2017-17449,
  CVE-2017-17450, CVE-2017-17558, CVE-2017-17741, CVE-2017-17805,
  CVE-2017-17806, CVE-2017-17807, CVE-2017-17862, CVE-2017-18075,
  CVE-2017-18203, CVE-2017-18204, CVE-2017-18208, CVE-2017-7518,
  CVE-2018-1000026, CVE-2018-5332, CVE-2018-5333, CVE-2018-5344,
  CVE-2018-6927, CVE-2018-7492, CVE-2018-8043

Package Information:
  https://launchpad.net/ubuntu/+source/linux/4.4.0-119.143
  https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1054.63
  https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1020.25
  https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1086.94
  https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1088.93

==========================================================================
Ubuntu Security Notice USN-3620-1
April 04, 2018

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- - linux: Linux kernel

Details:

It was discovered that the netlink 802.11 configuration interface in the
Linux kernel did not properly validate some attributes passed from
userspace. A local attacker with the CAP_NET_ADMIN privilege could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-11089)

It was discovered that a buffer overflow existed in the ioctl handling code
in the ISDN subsystem of the Linux kernel. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-12762)

It was discovered that the netfilter component of the Linux did not
properly restrict access to the connection tracking helpers list. A local
attacker could use this to bypass intended access restrictions.
(CVE-2017-17448)

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
contained an out-of-bounds read when handling memory-mapped I/O. A local
attacker could use this to expose sensitive information. (CVE-2017-17741)

It was discovered that the Salsa20 encryption algorithm implementations in
the Linux kernel did not properly handle zero-length inputs. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-17805)

It was discovered that the keyring implementation in the Linux kernel did
not properly check permissions when a key request was performed on a
task's' default keyring. A local attacker could use this to add keys to
unauthorized keyrings. (CVE-2017-17807)

It was discovered that the Broadcom NetXtremeII ethernet driver in the
Linux kernel did not properly validate Generic Segment Offload (GSO) packet
sizes. An attacker could use this to cause a denial of service (interface
unavailability). (CVE-2018-1000026)

It was discovered that the Reliable Datagram Socket (RDS) implementation in
the Linux kernel contained an out-of-bounds write during RDMA page
allocation. An attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2018-5332)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
  linux-image-3.13.0-144-generic  3.13.0-144.193
  linux-image-3.13.0-144-generic-lpae  3.13.0-144.193
  linux-image-3.13.0-144-lowlatency  3.13.0-144.193
  linux-image-3.13.0-144-powerpc-e500  3.13.0-144.193
  linux-image-3.13.0-144-powerpc-e500mc  3.13.0-144.193
  linux-image-3.13.0-144-powerpc-smp  3.13.0-144.193
  linux-image-3.13.0-144-powerpc64-emb  3.13.0-144.193
  linux-image-3.13.0-144-powerpc64-smp  3.13.0-144.193
  linux-image-generic             3.13.0.144.154
  linux-image-generic-lpae        3.13.0.144.154
  linux-image-lowlatency          3.13.0.144.154
  linux-image-powerpc-e500        3.13.0.144.154
  linux-image-powerpc-e500mc      3.13.0.144.154
  linux-image-powerpc-smp         3.13.0.144.154
  linux-image-powerpc64-emb       3.13.0.144.154
  linux-image-powerpc64-smp       3.13.0.144.154

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://usn.ubuntu.com/usn/usn-3620-1
  CVE-2017-11089, CVE-2017-12762, CVE-2017-17448, CVE-2017-17741,
  CVE-2017-17805, CVE-2017-17807, CVE-2018-1000026, CVE-2018-5332

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.13.0-144.193

==========================================================================
Ubuntu Security Notice USN-3620-2
April 05, 2018

linux-lts-trusty vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

USN-3620-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 ESM.

Jann Horn discovered that microprocessors utilizing speculative execution
and branch prediction may allow unauthorized memory reads via sidechannel
attacks. This flaw is known as Spectre. A local attacker could use this to
expose sensitive information, including kernel memory. (CVE-2017-5715)

It was discovered that the netlink 802.11 configuration interface in the
Linux kernel did not properly validate some attributes passed from
userspace. A local attacker with the CAP_NET_ADMIN privilege could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-11089)

It was discovered that a buffer overflow existed in the ioctl handling code
in the ISDN subsystem of the Linux kernel. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-12762)

It was discovered that the netfilter component of the Linux did not
properly restrict access to the connection tracking helpers list. A local
attacker could use this to bypass intended access restrictions.
(CVE-2017-17448)

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
contained an out-of-bounds read when handling memory-mapped I/O. A local
attacker could use this to expose sensitive information. (CVE-2017-17741)

It was discovered that the Salsa20 encryption algorithm implementations in
the Linux kernel did not properly handle zero-length inputs. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2017-17805)

It was discovered that the keyring implementation in the Linux kernel did
not properly check permissions when a key request was performed on a
task's default keyring. A local attacker could use this to add keys to
unauthorized keyrings. (CVE-2017-17807)

It was discovered that the Broadcom NetXtremeII ethernet driver in the
Linux kernel did not properly validate Generic Segment Offload (GSO) packet
sizes. An attacker could use this to cause a denial of service (interface
unavailability). (CVE-2018-1000026)

It was discovered that the Reliable Datagram Socket (RDS) implementation in
the Linux kernel contained an out-of-bounds write during RDMA page
allocation. An attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2018-5332)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
  linux-image-3.13.0-144-generic  3.13.0-144.193~precise1
  linux-image-3.13.0-144-generic-lpae  3.13.0-144.193~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.144.135
  linux-image-generic-lts-trusty  3.13.0.144.135

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://usn.ubuntu.com/usn/usn-3620-2
  https://usn.ubuntu.com/usn/usn-3620-1
  CVE-2017-11089, CVE-2017-12762, CVE-2017-17448, CVE-2017-17741,
  CVE-2017-17805, CVE-2017-17807, CVE-2017-5715, CVE-2018-1000026,
  CVE-2018-5332

- --------------------------END INCLUDED TEXT--------------------

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