drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3903-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.10 |
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Datum: |
Mi, 6. März 2019, 22:53 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16880
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18397
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6133 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3903-1 March 06, 2019
linux, linux-azure, 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-azure: Linux kernel for Microsoft Azure Cloud 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:
Jason Wang discovered that the vhost net driver in the Linux kernel contained an out of bounds write vulnerability. An attacker in a guest virtual machine could use this to cause a denial of service (host system crash) or possibly execute arbitrary code in the host kernel. (CVE-2018-16880)
Jann Horn discovered that the userfaultd implementation in the Linux kernel did not properly restrict access to certain ioctls. A local attacker could use this possibly to modify files. (CVE-2018-18397)
Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations. (CVE-2019-6133)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.10: linux-image-4.18.0-1007-gcp 4.18.0-1007.8 linux-image-4.18.0-1008-kvm 4.18.0-1008.8 linux-image-4.18.0-1010-raspi2 4.18.0-1010.12 linux-image-4.18.0-1013-azure 4.18.0-1013.13 linux-image-4.18.0-16-generic 4.18.0-16.17 linux-image-4.18.0-16-generic-lpae 4.18.0-16.17 linux-image-4.18.0-16-lowlatency 4.18.0-16.17 linux-image-4.18.0-16-snapdragon 4.18.0-16.17 linux-image-azure 4.18.0.1013.14 linux-image-gcp 4.18.0.1007.7 linux-image-generic 4.18.0.16.17 linux-image-generic-lpae 4.18.0.16.17 linux-image-gke 4.18.0.1007.7 linux-image-kvm 4.18.0.1008.8 linux-image-lowlatency 4.18.0.16.17 linux-image-raspi2 4.18.0.1010.7 linux-image-snapdragon 4.18.0.16.17
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-3903-1 CVE-2018-16880, CVE-2018-18397, CVE-2019-6133
Package Information: https://launchpad.net/ubuntu/+source/linux/4.18.0-16.17 https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1013.13 https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1007.8 https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1008.8 https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1010.12
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