Mehrere Probleme in Linux
ID: | USN-2419-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 12.04 LTS |
Datum: | Di, 25. November 2014, 08:24 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3690
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4608 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7970 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7975 |
Applikationen: | Linux |
Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============6439754950728387661== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JNfEDUQUvjKSf7xBx6uSF7h6RqwfhUVQH" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --JNfEDUQUvjKSf7xBx6uSF7h6RqwfhUVQH Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable ========================================================================== Ubuntu Security Notice USN-2419-1 November 25, 2014 linux-lts-trusty vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 LTS Summary: Several security issues were fixed in the kernel. Software Description: - linux-lts-trusty: Linux hardware enablement kernel from Trusty Details: A flaw was discovered in how the Linux kernel's KVM (Kernel Virtual Machine) subsystem handles the CR4 control register at VM entry on Intel processors. A local host OS user can exploit this to cause a denial of service (kill arbitrary processes, or system disruption) by leveraging /dev/kvm access. (CVE-2014-3690) Don Bailey discovered a flaw in the LZO decompress algorithm used by the Linux kernel. An attacker could exploit this flaw to cause a denial of service (memory corruption or OOPS). (CVE-2014-4608) 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) Andy Lutomirski discovered that the Linux kernel was not checking the CAP_SYS_ADMIN when remounting filesystems to read-only. A local user could exploit this flaw to cause a denial of service (loss of writability). (CVE-2014-7975) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 LTS: linux-image-3.13.0-40-generic 3.13.0-40.69~precise1 linux-image-3.13.0-40-generic-lpae 3.13.0-40.69~precise1 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-2419-1 CVE-2014-3690, CVE-2014-4608, CVE-2014-7970, CVE-2014-7975 Package Information: https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-40.69~precise1 --JNfEDUQUvjKSf7xBx6uSF7h6RqwfhUVQH 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 iQIcBAEBCgAGBQJUdAIvAAoJEAUvNnAY1cPYb64P/00GLWN6u55Cmnp1I9PCbu3t VAIwaKlQIeC4KVBNBGCZ07oKgoCJtD0W7le5jTT3koTeAIVOYKCnvCrDPyTuJvWZ uPEqmNtGTTc65wAYwHcMGYl9TGchP6PELkG8s+wRg7O5KzPOmm3+AENtuxsetiI8 HqEjmtnc8GuTsgLyPFfrs93JTP7dSdI9B6zzCFQHN6eNO6eWA8JXZwscVQ/XMcRW eSX61xFn9B9Dt3atU71SErXOCxcIwrdtT9CLJsi+V273AxPcj3wrHjywAyE+0ye/ HgXjdz7Xg2IC2KqwIdTXufApo7JgpQCT9IVPXbWuSsvIHyK2zXeHnB6k7tDKhpNb ASGBm+h+tC/f7q6KbvEVgSuEb8DeQTbwbT7iNxk/6aFqQ3f6CyoKf+61dTDvUN7x izTow1oNco1HYtatnBQ14v2z5kIVoIfDvukxcdID+AdT4gazWXN+32ZNHloTUsVR EdXIM4VDRdC/SzbBzN07t789JnpoYz+0VXLRcMl1Ellw6CNTbWp3fLEYnN2cuR3s T+iykWEjdwRC3RTHG9hl9oE/lf2KjJA4PfWUys7oLkoNqM6SYpOzpxKFahsiJ1em qgLCcnjsnb37ja8//Tlgh2A3llk2tqlaFoTvnfK5Rhj+4iWUH2bv4JWPCS9lZ4u+ PEHxI1od6KjfAAUzijLM =QBKT -----END PGP SIGNATURE----- --JNfEDUQUvjKSf7xBx6uSF7h6RqwfhUVQH-- --===============6439754950728387661== 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 --===============6439754950728387661==-- |