drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-3405-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Di, 29. August 2017, 06:28 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7495
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7837
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11176
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7541 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3405-1 August 28, 2017
linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
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-gke: Linux kernel for Google Container Engine (GKE) systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors
Details:
It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11176)
Huang Weller discovered that the ext4 filesystem implementation in the Linux kernel mishandled a needs-flushing-before-commit list. A local attacker could use this to expose sensitive information. (CVE-2017-7495)
It was discovered that a buffer overflow existed in the Broadcom FullMAC WLAN driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7541)
It was discovered that the Linux kernel did not honor the UEFI secure boot mode when performing a kexec operation. A local attacker could use this to bypass secure boot restrictions. (CVE-2015-7837)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1028-gke 4.4.0-1028.28 linux-image-4.4.0-1032-aws 4.4.0-1032.41 linux-image-4.4.0-1071-raspi2 4.4.0-1071.79 linux-image-4.4.0-1073-snapdragon 4.4.0-1073.78 linux-image-4.4.0-93-generic 4.4.0-93.116 linux-image-4.4.0-93-generic-lpae 4.4.0-93.116 linux-image-4.4.0-93-lowlatency 4.4.0-93.116 linux-image-4.4.0-93-powerpc-e500mc 4.4.0-93.116 linux-image-4.4.0-93-powerpc-smp 4.4.0-93.116 linux-image-4.4.0-93-powerpc64-emb 4.4.0-93.116 linux-image-4.4.0-93-powerpc64-smp 4.4.0-93.116 linux-image-aws 4.4.0.1032.34 linux-image-generic 4.4.0.93.98 linux-image-generic-lpae 4.4.0.93.98 linux-image-gke 4.4.0.1028.29 linux-image-lowlatency 4.4.0.93.98 linux-image-powerpc-smp 4.4.0.93.98 linux-image-powerpc64-emb 4.4.0.93.98 linux-image-powerpc64-smp 4.4.0.93.98 linux-image-raspi2 4.4.0.1071.71 linux-image-snapdragon 4.4.0.1073.65
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://www.ubuntu.com/usn/usn-3405-1 CVE-2015-7837, CVE-2017-11176, CVE-2017-7495, CVE-2017-7541
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-93.116 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1032.41 https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1028.28 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1071.79 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1073.78
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