[USN-3674-1] Linux kernel vulnerabilities


–===============5933309368908383858==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol=”application/pgp-signature”; boundary=”qjNfmADvan18RZcF”
Content-Disposition: inline

–qjNfmADvan18RZcF
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-3674-1
June 11, 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 netfilter subsystem of the Linux kernel did not
properly validate ebtables offsets. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2018-1068)

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)

Eyal Itkin discovered that the USB displaylink video adapter driver in the
Linux kernel did not properly validate mmap offsets sent from userspace. A
local attacker could use this to expose sensitive information (kernel
memory) or possibly execute arbitrary code. (CVE-2018-8781)

Xingyuan Lin discovered that a out-of-bounds read existed in the USB Video
Class (UVC) driver of the Linux kernel. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2017-0627)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-151-generic 3.13.0-151.201
linux-image-3.13.0-151-generic-lpae 3.13.0-151.201
linux-image-3.13.0-151-lowlatency 3.13.0-151.201
linux-image-3.13.0-151-powerpc-e500 3.13.0-151.201
linux-image-3.13.0-151-powerpc-e500mc 3.13.0-151.201
linux-image-3.13.0-151-powerpc-smp 3.13.0-151.201
linux-image-3.13.0-151-powerpc64-emb 3.13.0-151.201
linux-image-3.13.0-151-powerpc64-smp 3.13.0-151.201
linux-image-generic 3.13.0.151.161
linux-image-generic-lpae 3.13.0.151.161
linux-image-lowlatency 3.13.0.151.161
linux-image-powerpc-e500 3.13.0.151.161
linux-image-powerpc-e500mc 3.13.0.151.161
linux-image-powerpc-smp 3.13.0.151.161
linux-image-powerpc64-emb 3.13.0.151.161
linux-image-powerpc64-smp 3.13.0.151.161

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-3674-1
CVE-2017-0627, CVE-2018-1068, CVE-2018-7492, CVE-2018-8781

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-151.201

–qjNfmADvan18RZcF
Content-Type: application/pgp-signature; name=”signature.asc”

—–BEGIN PGP SIGNATURE—–
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=iOej
—–END PGP SIGNATURE—–

–qjNfmADvan18RZcF–

–===============5933309368908383858==
Content-Type: text/plain; charset=”utf-8″
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

–===============5933309368908383858==–