==========================================================================
Ubuntu Security Notice USN-3381-1
August 07, 2017

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:

Peter Pi discovered that the colormap handling for frame buffer devices in
the Linux kernel contained an integer overflow. A local attacker could use
this to disclose sensitive information (kernel memory). (CVE-2016-8405)

It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)

It was discovered that SELinux in the Linux kernel did not properly handle
empty writes to /proc/pid/attr. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-2618)

石磊 discovered that the RxRPC Kerberos 5 ticket handling code in the
Linux kernel did not properly verify metadata. A remote attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7482)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-126-generic 3.13.0-126.175
linux-image-3.13.0-126-generic-lpae 3.13.0-126.175
linux-image-3.13.0-126-lowlatency 3.13.0-126.175
linux-image-3.13.0-126-powerpc-e500 3.13.0-126.175
linux-image-3.13.0-126-powerpc-e500mc 3.13.0-126.175
linux-image-3.13.0-126-powerpc-smp 3.13.0-126.175
linux-image-3.13.0-126-powerpc64-emb 3.13.0-126.175
linux-image-3.13.0-126-powerpc64-smp 3.13.0-126.175
linux-image-generic 3.13.0.126.136
linux-image-generic-lpae 3.13.0.126.136
linux-image-lowlatency 3.13.0.126.136
linux-image-powerpc-e500 3.13.0.126.136
linux-image-powerpc-e500mc 3.13.0.126.136
linux-image-powerpc-smp 3.13.0.126.136
linux-image-powerpc64-emb 3.13.0.126.136
linux-image-powerpc64-smp 3.13.0.126.136

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://www.ubuntu.com/usn/usn-3381-1
CVE-2016-8405, CVE-2017-1000365, CVE-2017-2618, CVE-2017-7482

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-126.175

—–BEGIN PGP SIGNATURE—–
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=CTEB
—–END PGP SIGNATURE—–
—
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

==========================================================================
Ubuntu Security Notice USN-3381-2
August 07, 2017

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-3381-1 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.

Peter Pi discovered that the colormap handling for frame buffer devices in
the Linux kernel contained an integer overflow. A local attacker could use
this to disclose sensitive information (kernel memory). (CVE-2016-8405)

It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)

It was discovered that SELinux in the Linux kernel did not properly handle
empty writes to /proc/pid/attr. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-2618)

石磊 discovered that the RxRPC Kerberos 5 ticket handling code in the
Linux kernel did not properly verify metadata. A remote attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7482)

Update instructions:

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

Ubuntu 12.04 ESM:
linux-image-3.13.0-126-generic 3.13.0-126.175~precise1
linux-image-3.13.0-126-generic-lpae 3.13.0-126.175~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.126.117
linux-image-generic-lts-trusty 3.13.0.126.117

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://www.ubuntu.com/usn/usn-3381-2
https://www.ubuntu.com/usn/usn-3381-1
CVE-2016-8405, CVE-2017-1000365, CVE-2017-2618, CVE-2017-7482

—–BEGIN PGP SIGNATURE—–
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=ktEQ
—–END PGP SIGNATURE—–
—