Denial of Service in Linux
ID: | USN-2807-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 14.04 LTS |
Datum: | Mi, 11. November 2015, 08:22 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307 |
Applikationen: | Linux |
Originalnachricht |
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--===============1226619350480622685== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="RwGu8mu1E+uYXPWP" Content-Disposition: inline --RwGu8mu1E+uYXPWP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ========================================================================== Ubuntu Security Notice USN-2807-1 November 10, 2015 linux-lts-wily vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS Summary: The system could be made to crash under certain conditions. Software Description: - linux-lts-wily: Linux hardware enablement kernel from Wily Details: Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-4.2.0-18-generic 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-generic-lpae 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-lowlatency 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc-e500mc 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc-smp 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc64-emb 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc64-smp 4.2.0-18.22~14.04.1 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. 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-2807-1 CVE-2015-5307 Package Information: https://launchpad.net/ubuntu/+source/linux-lts-wily/4.2.0-18.22~14.04.1 --RwGu8mu1E+uYXPWP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJWQj2dAAoJEC8Jno0AXoH0fp8QALQaazy98t02+WP/Hq29Im35 tMmiY3EfDFp4FCx+phZz1aLQBz5uRrX2AdUA95g2M3mlp+Uy2Z6rFlC84NSRlDSs U4S39lvSEh4PtunfJka7JfHiPkGsYttvcLWYdnGvVLSvJhloHNVEMtSlRv5Etqvc AlvQhADiBxG949CPnHfvDHwri6jsDfencBV0Ms61bgBElWBsEeWOmVfY67g9Bwox r6hLwlhA20Kumdkvclu7rf8m6FlGLmj9VNnw2QG8NuHm7xUpjY9spJ88In5vu3Z+ kmmYoUx6JcUgw/s8NQPVHbGNnuU+0C4v1es83tOi4CiLY4pTePRlx/gIrTSg4t+P 2HR7cxIB1YeILVkxnBcuylwcS0nHhVsbbyxFF/R8cSCjzLUez4KVbJO2CQFKz4jS MbN+FVa6OPw3a1lDUssk5sfw+H63IIPgvSOe2vqz0VFeWXMqaicZRPHHXzxyLpxR a8YFqbwtmpU0gAdcwqmv3TTtRLMKbKiwwbQLx6beU/WzQJJgiGUCA/0L84/KICxt LcXVcd4H+REzglbobCPsQTxM482w+HB3I8c11JocCJGLKCpRf7sjtFGnIV6ltzPD teiEVr4F5/N2AotahdziJq77vGnSLxzS2N4bvLbpi6thQ1fun5FYpk3YbQwHqUgY JaQWJR74g6EzvHR0DbiB =ZZCz -----END PGP SIGNATURE----- --RwGu8mu1E+uYXPWP-- --===============1226619350480622685== 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 --===============1226619350480622685==-- |