Zwei Probleme in Linux (Aktualisierung)
ID: | USN-2979-2 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 14.04 LTS |
Datum: | Di, 17. Mai 2016, 07:14 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0758
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3713 |
Applikationen: | Linux |
Update von: | Zwei Probleme in Linux |
Originalnachricht |
|
--===============6977911074596694091== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ZvvH1QDaOFG4lOZN" Content-Disposition: inline --ZvvH1QDaOFG4lOZN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ========================================================================== Ubuntu Security Notice USN-2979-2 May 16, 2016 linux-lts-xenial vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the kernel. Software Description: - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty Details: USN-2979-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. David Matlack discovered that the Kernel-based Virtual Machine (KVM) implementation in the Linux kernel did not properly restrict variable Memory Type Range Registers (MTRR) in KVM guests. A privileged user in a guest VM could use this to cause a denial of service (system crash) in the host, expose sensitive information from the host, or possibly gain administrative privileges in the host. (CVE-2016-3713) Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did not properly process certificate files with tags of indefinite length. A local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-0758) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-4.4.0-22-generic 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-generic-lpae 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-lowlatency 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-powerpc-e500mc 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-powerpc-smp 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-powerpc64-emb 4.4.0-22.40~14.04.1 linux-image-4.4.0-22-powerpc64-smp 4.4.0-22.40~14.04.1 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-xenial, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: http://www.ubuntu.com/usn/usn-2979-2 http://www.ubuntu.com/usn/usn-2979-1 CVE-2016-0758, CVE-2016-3713 Package Information: https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-22.40~14.04.1 --ZvvH1QDaOFG4lOZN Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJXOhtPAAoJEC8Jno0AXoH0joAP/1luGjHh9WvIZiP+HnV88SZ0 ugm6MIaQyMyDM0ZtqM8jgE0WU4D1RmzjXx3ek+X9hXf3ZFvMm8PbVWUrmwEBiuPu 7t7ix/+dT5tyDzS34dSgx7QmPg+3ttX+N48A6KX66j4+DO4gynt+oeLFjGt0xVyc CJNUiwxvifPhDxO0U1XWZQk/qtNcYthzqQIC/vW8WU7vRPoThIc5OjWhcFI3GnjY IDRtmBwKdC4N2umWxQi0JOzZkDie3nNCPa6NnjhAajEDst5nSS2ZFHs6e9ca8TwO ICVj475tV2ZfQbuZUQHqC6bS68GvdcxFGLyTlA55V/lsRnoPQnP5wNA4Zl6I2f7T VSrAM4CKtu0VWtyOpEB9l3tx5TAkcL3q/5QvBjjS57MAUr9lRq22O8tPwFt3BdMU DkFCW9W6sqQ0+/abiGcjE2ApX18ci4RiANARneBIntVqWOc9d6bdFcC/8QaFzbov p59a1NEpughjEYP5DORgYO2I+nwcrONq3AmJl1XrmCQV9k5EL3+MzWii+wYEmvM9 DKuKMgKEiHel4HDdBOmaJjC5pciY3ZAJDKSxfGAjGMzC/B/Pv2raf/qtHZNJfNxB pJCr4wb+vVfsU7uSccke4hdSltTPKixNQrHGJWoZV8j6eTQg7cHs1YDt8Fvr5edE 0JmFQ7nQNxQc22zUrWWg =JRfR -----END PGP SIGNATURE----- --ZvvH1QDaOFG4lOZN-- --===============6977911074596694091== 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 --===============6977911074596694091==-- |