drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2797-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Do, 5. November 2015, 20:30 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2925
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0272
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5257
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5283 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2797-1 November 05, 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:
It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272)
It was discovered that in certain situations, a directory could be renamed outside of a bind mounted location. An attacker could use this to escape bind mount containment and gain access to sensitive information. (CVE-2015-2925)
Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver contained hardcoded attributes about the USB devices. An attacker could construct a fake WhiteHEAT USB device that, when inserted, causes a denial of service (system crash). (CVE-2015-5257)
It was discovered that the SCTP protocol implementation in the Linux kernel performed an incorrect sequence of protocol-initialization steps. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-5283)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-3.16.0-52-generic 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-generic-lpae 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-lowlatency 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-powerpc-e500mc 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-powerpc-smp 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-powerpc64-emb 3.16.0-52.71~14.04.1 linux-image-3.16.0-52-powerpc64-smp 3.16.0-52.71~14.04.1
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-2797-1 CVE-2015-0272, CVE-2015-2925, CVE-2015-5257, CVE-2015-5283
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-52.71~14.04.1
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