drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux (Aktualisierung)
Name: |
Mehrere Probleme in Linux (Aktualisierung) |
|
ID: |
USN-2448-2 |
|
Distribution: |
Ubuntu |
|
Plattformen: |
Ubuntu 14.10 |
|
Datum: |
Fr, 19. Dezember 2014, 14:07 |
|
Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3673
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3687
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3688
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7825
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7826
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7970
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8086
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8134
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8369
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9090 |
|
Applikationen: |
Linux |
|
Update von: |
Mehrere Probleme in Linux |
|
Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============0686722613574921301== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cVaVCSUfIT9nAsGbbJegeSrl7K3Q4HfPo"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --cVaVCSUfIT9nAsGbbJegeSrl7K3Q4HfPo Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-2448-2 December 19, 2014
linux regression ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
Summary:
USN-2448-1 introduced a regression in the Linux kernel.
Software Description: - linux: Linux kernel
Details:
USN-2448-1 fixed vulnerabilities in the Linux kernel. Due to an unrelated regression TCP Throughput drops to zero for several drivers after upgrading. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
An information leak in the Linux kernel was discovered that could leak the high 16 bits of the kernel stack address on 32-bit Kernel Virtual Machine (KVM) paravirt guests. A user in the guest OS could exploit this leak to obtain information that could potentially be used to aid in attacking the kernel. (CVE-2014-8134) Rabin Vincent, Robert Swiecki, Russell King discovered that the ftrace subsystem of the Linux kernel does not properly handle private syscall numbers. A local user could exploit this flaw to cause a denial of service (OOPS). (CVE-2014-7826) A flaw in the handling of malformed ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2014-3673) A flaw in the handling of duplicate ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-3687) It was discovered that excessive queuing by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel can cause memory pressure. A remote attacker could exploit this flaw to cause a denial of service. (CVE-2014-3688) Rabin Vincent, Robert Swiecki, Russell Kinglaw discovered a flaw in how the perf subsystem of the Linux kernel handles private systecall numbers. A local user could exploit this to cause a denial of service (OOPS) or bypass ASLR protections via a crafted application. (CVE-2014-7825) Andy Lutomirski discovered a flaw in how the Linux kernel handles pivot_root when used with a chroot directory. A local user could exploit this flaw to cause a denial of service (mount-tree loop). (CVE-2014-7970) Dmitry Monakhov discovered a race condition in the ext4_file_write_iter function of the Linux kernel's ext4 filesystem. A local user could exploit this flaw to cause a denial of service (file unavailability). (CVE-2014-8086) The KVM (kernel virtual machine) subsystem of the Linux kernel miscalculates the number of memory pages during the handling of a mapping failure. A guest OS user could exploit this to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. (CVE-2014-8369) Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment (SS) register on the x86 architecture. A local attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-9090)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.10: linux-image-3.16.0-28-generic 3.16.0-28.38 linux-image-3.16.0-28-generic-lpae 3.16.0-28.38 linux-image-3.16.0-28-lowlatency 3.16.0-28.38 linux-image-3.16.0-28-powerpc-e500mc 3.16.0-28.38 linux-image-3.16.0-28-powerpc-smp 3.16.0-28.38 linux-image-3.16.0-28-powerpc64-emb 3.16.0-28.38 linux-image-3.16.0-28-powerpc64-smp 3.16.0-28.38
After a standard system update you need to reboot your computer to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2448-2 http://www.ubuntu.com/usn/usn-2448-1 http://bugs.launchpad.net/bugs/1390604
Package Information: https://launchpad.net/ubuntu/+source/linux/3.16.0-28.38
--cVaVCSUfIT9nAsGbbJegeSrl7K3Q4HfPo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1
iQIcBAEBCgAGBQJUlB78AAoJEAUvNnAY1cPY2IUP/07CZXhXcZdxa2OSoDZlQIzQ 8sND0qZt3gwpwVK5XcILjoQoBe0pqXWlh6qShLnHkrcuylcYeDINVD4JNR+tynl4 9H5cYT2g+pcxpMV79YGxtKLDqUPQNmSBI/ONfu+BzwCaqqWV/1m+e3nYqpVxVKbY XNrO8sr+mnAN/ZGYnYlwCKxLlbJU9ZeDa7B/QFDypMXmf9DVPHFh+RovYR9/D2mr vAzkI8oC2CBPJSbjugGtI9wYMOL3kIXrZtkxDocK/6h4NL1Lvg1PC2nQk3SqhZKQ jUjyxK4Rgq0Geh8wrs+v6j7jbCL4mYYRjPTUWHdDrHuPBSMPvvu4vV5VoVJtzP4m 2f/NTqmmbXqY09828FGHHSVdZvo9bmuuPPyl/OJzoSEuulRKKqi0MDWFK5F2LMyW QAsB020IrYLjJIJRwaVoeDes0Xq0wddtUsho3t9ZJJukcwcXuDP/lzzuTM73XR5X gRmCDrLcQd3fIwzfnqSVSHDvnOru4gKjjd/pirloKZRlJlKJvw0A4cglhScucdra P24P1BJrJxa+2HB1UIW2WAJ4/D1cZPVz4bkfOlyhPcluGC/6AG4PRYZDANwQysaX y3ChT41rLyrsUonQHUUZPI66JdQr5WnRgMHm6Qjo0AiyFEoDtbfRkTSWqkH9Fi5y C10RvOnLH9PVWp1TyAC2 =TywK -----END PGP SIGNATURE-----
--cVaVCSUfIT9nAsGbbJegeSrl7K3Q4HfPo--
--===============0686722613574921301== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit 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
--===============0686722613574921301==--
|
|
|
|