drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-1431-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 11.10 |
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Datum: |
Di, 1. Mai 2012, 14:58 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4086
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4347
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0045
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1090
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1146
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1179 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1431-1 May 01, 2012
linux vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux: Linux kernel
Details:
A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-4086)
Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. (CVE-2011-4347)
Stephan BÀrwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. (CVE-2012-0045)
A flaw was discovered in the Linux kernel's cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1090)
H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. (CVE-2012-1097)
A flaw was discovered in the Linux kernel's cgroups subset. A local attacker could use this flaw to crash the system. (CVE-2012-1146)
A flaw was found in the Linux kernel's handling of paged memory. A local unprivileged user, or a privileged user within a KVM guest, could exploit this flaw to crash the system. (CVE-2012-1179)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: linux-image-3.0.0-19-generic 3.0.0-19.33 linux-image-3.0.0-19-generic-pae 3.0.0-19.33 linux-image-3.0.0-19-omap 3.0.0-19.33 linux-image-3.0.0-19-powerpc 3.0.0-19.33 linux-image-3.0.0-19-powerpc-smp 3.0.0-19.33 linux-image-3.0.0-19-powerpc64-smp 3.0.0-19.33 linux-image-3.0.0-19-server 3.0.0-19.33 linux-image-3.0.0-19-virtual 3.0.0-19.33
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-1431-1 CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-1179
Package Information: https://launchpad.net/ubuntu/+source/linux/3.0.0-19.33
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