drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
USN-3443-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 17.04 |
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Datum: |
Mi, 11. Oktober 2017, 00:26 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000255
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14106 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3443-1 October 10, 2017
linux, linux-raspi2 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-raspi2: Linux kernel for Raspberry Pi 2
Details:
It was discovered that on the PowerPC architecture, the kernel did not properly sanitize the signal stack when handling sigreturn(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-1000255)
Andrey Konovalov discovered that a divide-by-zero error existed in the TCP stack implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-14106)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04: linux-image-4.10.0-1019-raspi2 4.10.0-1019.22 linux-image-4.10.0-37-generic 4.10.0-37.41 linux-image-4.10.0-37-generic-lpae 4.10.0-37.41 linux-image-4.10.0-37-lowlatency 4.10.0-37.41 linux-image-generic 4.10.0.37.37 linux-image-generic-lpae 4.10.0.37.37 linux-image-lowlatency 4.10.0.37.37 linux-image-powerpc-e500mc 4.10.0.37.37 linux-image-powerpc-smp 4.10.0.37.37 linux-image-powerpc64-emb 4.10.0.37.37 linux-image-powerpc64-smp 4.10.0.37.37 linux-image-raspi2 4.10.0.1019.20 linux-image-virtual 4.10.0.37.37
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-3443-1 CVE-2017-1000255, CVE-2017-14106
Package Information: https://launchpad.net/ubuntu/+source/linux/4.10.0-37.41 https://launchpad.net/ubuntu/+source/linux-raspi2/4.10.0-1019.22
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