drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-1386-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 10.04 LTS |
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Datum: |
Di, 6. März 2012, 19:40 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2498
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2518
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3353
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4622
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0038
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0044
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0207 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1386-1 March 06, 2012
linux-lts-backport-natty vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-backport-natty: Linux kernel backport from Natty
Details:
The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service. (CVE-2011-2498)
A flaw was discovered in the TOMOYO LSM's handling of mount system calls. An unprivileged user could oops the system causing a denial of service. (CVE-2011-2518)
Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. (CVE-2011-3353)
A bug was discovered in the Linux kernel's calculation of OOM (Out of memory) scores, that would result in the wrong process being killed. A user could use this to kill the process with the highest OOM score, even if that process belongs to another user or the system. (CVE-2011-4097)
A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. (CVE-2011-4622)
A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. (CVE-2012-0038)
Chen Haogang discovered an integer overflow that could result in memory corruption. A local unprivileged user could use this to crash the system. (CVE-2012-0044)
A flaw was found in the linux kernels IPv4 IGMP query processing. A remote attacker could exploit this to cause a denial of service. (CVE-2012-0207)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04 LTS: linux-image-2.6.38-13-generic 2.6.38-13.56~lucid1 linux-image-2.6.38-13-generic-pae 2.6.38-13.56~lucid1 linux-image-2.6.38-13-server 2.6.38-13.56~lucid1 linux-image-2.6.38-13-virtual 2.6.38-13.56~lucid1
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-1386-1 CVE-2011-2498, CVE-2011-2518, CVE-2011-3353, CVE-2011-4097, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2012-0207
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-backport-natty/2.6.38-13.56~lucid1
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