Mehrere Probleme in Linux
ID: | USN-2448-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 14.10 |
Datum: | Fr, 12. Dezember 2014, 11:31 |
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 |
Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============5601541549553714746== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="cRw9PODqMGSo6tneCFUdXtCF9J3eEdIMj" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --cRw9PODqMGSo6tneCFUdXtCF9J3eEdIMj Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable ========================================================================== Ubuntu Security Notice USN-2448-1 December 12, 2014 linux vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 Summary: Several security issues were fixed in the kernel. Software Description: - linux: Linux kernel 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 3.16.0-28.37 linux-image-3.16.0-28-generic-lpae 3.16.0-28.37 linux-image-3.16.0-28-lowlatency 3.16.0-28.37 linux-image-3.16.0-28-powerpc-e500mc 3.16.0-28.37 linux-image-3.16.0-28-powerpc-smp 3.16.0-28.37 linux-image-3.16.0-28-powerpc64-emb 3.16.0-28.37 linux-image-3.16.0-28-powerpc64-smp 3.16.0-28.37 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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well. References: http://www.ubuntu.com/usn/usn-2448-1 CVE-2014-3673, CVE-2014-3687, CVE-2014-3688, CVE-2014-7825, CVE-2014-7826, CVE-2014-7970, CVE-2014-8086, CVE-2014-8134, CVE-2014-8369, CVE-2014-9090 Package Information: https://launchpad.net/ubuntu/+source/linux/3.16.0-28.37 --cRw9PODqMGSo6tneCFUdXtCF9J3eEdIMj 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 iQIcBAEBCgAGBQJUip9kAAoJEAUvNnAY1cPYYqsP/jHUlI5hSBlGfYzzvdjlvimu U15rWpc3D/Yk6mKBiO/FhL684ikiaNtaO8e6O3AL0/jKFKpaCrv2NXtLbF8CpZy6 GiJMbvOLqbixq3O8Ol+6900Swlsnk138duLG78nA+88AKY/hBG/xo49nOJmypbNt uVc2ptLIMWIJvJJIn/Vj62lKjch5uHgUiwe3B2xBLTvBzcy3ASFsydLEe/uedTRg tcEhCzL7PPPs0hs5luBOoDaZkJDPdqWgsnuNa9WWOfUo531UWBgXCIvKV29BPqO5 VBcQmO+ZeoNLW6FvpxnUb+iJw5MbIaPLfT27MO5cT3lhNOy7i6VpLC+NnJc9dCvS B4BUKFy7ximoY5LtNuZSZKx0EOBMlTjoU5HhslBqQHaZFYPdTyoLXskT279ElxYo J7v7qLdoT5iVu67PpBtPqKV4ljnD+6RLXTEwMC9/EFsKebAfIcUAedOTe2xhmyn5 jt08XnowXyreFCDvS/TNHWjYzZGp9poE++MVbkuRfGUlz2NXUhB6h0QM3jYNWOxg nhcfNMmY3SgNZ3eTQ8DzWss67hqhyixXMMBF2U5RFDJfD9jY9U3+mRWAuasBHmR8 SpESim44X9X2owCfPgXNJD9mLWz1gSkViyiH++xShJIhfIOYzGpI6AqeoCA63VWL lwku/MzB9VatsQqkvvt/ =OANC -----END PGP SIGNATURE----- --cRw9PODqMGSo6tneCFUdXtCF9J3eEdIMj-- --===============5601541549553714746== 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 --===============5601541549553714746==-- |