drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
USN-2635-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Do, 11. Juni 2015, 07:09 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0275
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3636 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2635-1 June 10, 2015
linux-lts-utopic vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-utopic: Linux hardware enablement kernel from Utopic
Details:
Xiong Zhou discovered a bug in the way the EXT4 filesystem handles fallocate zero range functionality when the page size is greater than the block size. A local attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2015-0275)
Wen Xu discovered a use-after-free flaw in the Linux kernel's ipv4 ping support. A local user could exploit this flaw to cause a denial of service (system crash) or gain administrative privileges on the system. (CVE-2015-3636)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-3.16.0-39-generic 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-generic-lpae 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-lowlatency 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-powerpc-e500mc 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-powerpc-smp 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-powerpc64-emb 3.16.0-39.53~14.04.1 linux-image-3.16.0-39-powerpc64-smp 3.16.0-39.53~14.04.1
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-2635-1 CVE-2015-0275, CVE-2015-3636
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-39.53~14.04.1
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