Mehrere Probleme in Linux
ID: | USN-3878-1 |
Distribution: | Ubuntu |
Plattformen: | Ubuntu 18.10 |
Datum: | Di, 5. Februar 2019, 06:46 |
Referenzen: | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19407
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16882 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14625 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19854 |
Applikationen: | Linux |
Originalnachricht |
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--===============5647482099493354868== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="VACxsDaSTfeluoxK" Content-Disposition: inline --VACxsDaSTfeluoxK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline ========================================================================== Ubuntu Security Notice USN-3878-1 February 04, 2019 linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.10 Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information (host machine kernel memory). (CVE-2018-14625) Cfir Cohen discovered that a use-after-free vulnerability existed in the KVM implementation of the Linux kernel, when handling interrupts in environments where nested virtualization is in use (nested KVM virtualization is not enabled by default in Ubuntu kernels). A local attacker in a guest VM could possibly use this to gain administrative privileges in a host machine. (CVE-2018-16882) Wei Wu discovered that the KVM implementation in the Linux kernel did not properly ensure that ioapics were initialized. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-19407) It was discovered that the crypto subsystem of the Linux kernel leaked uninitialized memory to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-19854) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: linux-image-4.18.0-1006-gcp 4.18.0-1006.7 linux-image-4.18.0-1007-kvm 4.18.0-1007.7 linux-image-4.18.0-1008-aws 4.18.0-1008.10 linux-image-4.18.0-1009-raspi2 4.18.0-1009.11 linux-image-4.18.0-14-generic 4.18.0-14.15 linux-image-4.18.0-14-generic-lpae 4.18.0-14.15 linux-image-4.18.0-14-lowlatency 4.18.0-14.15 linux-image-4.18.0-14-snapdragon 4.18.0-14.15 linux-image-aws 4.18.0.1008.8 linux-image-gcp 4.18.0.1006.6 linux-image-generic 4.18.0.14.15 linux-image-generic-lpae 4.18.0.14.15 linux-image-gke 4.18.0.1006.6 linux-image-kvm 4.18.0.1007.7 linux-image-lowlatency 4.18.0.14.15 linux-image-raspi2 4.18.0.1009.6 linux-image-snapdragon 4.18.0.14.15 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-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3878-1 CVE-2018-14625, CVE-2018-16882, CVE-2018-19407, CVE-2018-19854 Package Information: https://launchpad.net/ubuntu/+source/linux/4.18.0-14.15 https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1008.10 https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1006.7 https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1007.7 https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1009.11 --VACxsDaSTfeluoxK Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpgY7tWAjCaQ8jrvULwmejQBegfQFAlxY0IoACgkQLwmejQBe gfR2Uw//aIl2pm5NZk4LxlXYt4OSFxZ4crSLwDRaZxEODY4x7vZKKUfCJNJfhnxH QQe8LR/2H6nyHzFPpGdKf4cR/M0mz1P3XmVjo97kNKmhrI1z39IBhzQIAxWLZfa0 89XpZFlpBYEidKQYgtV0l2Hc8nHA+gFbjS4cCB3mEmgZkVEETM9lcqr+wb+z/zAL h/q2aCcy4dEdMlHFVbQhQqwXfh2BEAYUR+BVqlOerdfzJV1M7FiJ/V6bZOK1yrRf +kSFmqBXTA9qD8ggp2jjV5/8JFiZH+tZof3Vs/gIM1YlavGpEinpXybmfLlGffJD i9URRfMyBn3W+N3b7mzln75MnEP9vtrOfk8Vi6GuBfwHmEDdyjio288d2R8IpnJj m1qe9ZIBj3qmY7VAqXPPwT2mvPV4fx/n9V/SDYF2HXU6Uk7Jb/BfJLgdkAo6gzaQ alszBFAautB+c/PZUS8wg5UqGA0SjWpDOA0WiB8+BFL72dKK01GcrIMMINe1OPSC 5n39lP7no7tZ+c6AE7K+0ZhRD7vg7PXlpkJumvEoZucLEa1QtOiEGmVPdx9uQ1zs pPt+2KO/FYd0af54BdTvLhI6FVBrbn6UHSt8YGCRiAcezHya/yWCK5jurLNZO4NC Sizb50dRCm8bN0AeeNXhQnV2KrC4DYnm2PLd/rwXNxKotq+2z/M= =Usdv -----END PGP SIGNATURE----- --VACxsDaSTfeluoxK-- --===============5647482099493354868== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 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 |