Login
Login-Name Passwort


 
Newsletter
Werbung

Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-3582-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS
Datum: Do, 22. Februar 2018, 15:00
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12190
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15115
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5715
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17712
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8824
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8952
Applikationen: Linux

Originalnachricht


--===============7394112128445943622==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="cpvLTH7QU4gwfq3S"
Content-Disposition: inline


--cpvLTH7QU4gwfq3S
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-3582-1
February 22, 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:

Mohamed Ghannam discovered that the IPv4 raw socket implementation in the
Linux kernel contained a race condition leading to uninitialized pointer
usage. A local attacker could use this to cause a denial of service or
possibly execute arbitrary code. (CVE-2017-17712)

Laurent Guerby discovered that the mbcache feature in the ext2 and ext4
filesystems in the Linux kernel improperly handled xattr block caching. A
local attacker could use this to cause a denial of service. (CVE-2015-8952)

Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel
did not properly track reference counts when merging buffers. A local
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2017-12190)

ChunYu Wang discovered that a use-after-free vulnerability existed in the
SCTP protocol 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-2017-15115)

Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP
protocol 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-2017-8824)

USN-3540-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the
amd64 architecture in Ubuntu 16.04 LTS. This update provides the
compiler-based retpoline kernel mitigation for the amd64 and i386
architectures. Original advisory details:

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)

Update instructions:

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

Ubuntu 16.04 LTS:
linux-image-4.4.0-1019-kvm 4.4.0-1019.24
linux-image-4.4.0-1052-aws 4.4.0-1052.61
linux-image-4.4.0-1085-raspi2 4.4.0-1085.93
linux-image-4.4.0-1087-snapdragon 4.4.0-1087.92
linux-image-4.4.0-116-generic 4.4.0-116.140
linux-image-4.4.0-116-generic-lpae 4.4.0-116.140
linux-image-4.4.0-116-lowlatency 4.4.0-116.140
linux-image-4.4.0-116-powerpc-e500mc 4.4.0-116.140
linux-image-4.4.0-116-powerpc-smp 4.4.0-116.140
linux-image-4.4.0-116-powerpc64-emb 4.4.0-116.140
linux-image-4.4.0-116-powerpc64-smp 4.4.0-116.140
linux-image-aws 4.4.0.1052.54
linux-image-generic 4.4.0.116.122
linux-image-generic-lpae 4.4.0.116.122
linux-image-kvm 4.4.0.1019.18
linux-image-lowlatency 4.4.0.116.122
linux-image-powerpc-e500mc 4.4.0.116.122
linux-image-powerpc-smp 4.4.0.116.122
linux-image-powerpc64-emb 4.4.0.116.122
linux-image-powerpc64-smp 4.4.0.116.122
linux-image-raspi2 4.4.0.1085.85
linux-image-snapdragon 4.4.0.1087.79

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-3582-1
CVE-2015-8952, CVE-2017-12190, CVE-2017-15115, CVE-2017-17712,
CVE-2017-5715, CVE-2017-8824

Package Information:
https://launchpad.net/ubuntu/+source/linux/4.4.0-116.140
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1052.61
https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1019.24
https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1085.93
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1087.92


--cpvLTH7QU4gwfq3S
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=3bDn
-----END PGP SIGNATURE-----

--cpvLTH7QU4gwfq3S--


--===============7394112128445943622==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

--
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
Pro-Linux
Unterstützer werden
Neue Nachrichten
Werbung