drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-1812-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS |
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Datum: |
Do, 2. Mai 2013, 08:24 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6548
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6549
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0913
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1796
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1797
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1798
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1848
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1860
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2634
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2635 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1812-1 May 01, 2013
linux-lts-quantal vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description: - linux-lts-quantal: Linux hardware enablement kernel from Quantal
Details:
Mathias Krause discovered an information leak in the Linux kernel's UDF file system implementation. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6548)
Mathias Krause discovered an information leak in the Linux kernel's ISO 9660 CDROM file system driver. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6549)
An integer overflow was discovered in the Direct Rendering Manager (DRM) subsystem for the i915 video driver in the Linux kernel. A local user could exploit this flaw to cause a denial of service (crash) or potentially escalate privileges. (CVE-2013-0913)
Andrew Honig discovered a flaw in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to cause a denial of service (crash host system) or potentially escalate privilege to the host kernel level. (CVE-2013-1796)
Andrew Honig discovered a use after free error in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to escalate privilege to the host kernel level. (CVE-2013-1797)
Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine) emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service (crash the host). (CVE-2013-1798)
A format-string bug was discovered in the Linux kernel's ext3 filesystem driver. A local user could exploit this flaw to possibly escalate privileges on the system. (CVE-2013-1848)
A buffer overflow was discovered in the Linux Kernel's USB subsystem for devices reporting the cdc-wdm class. A specially crafted USB device when plugged-in could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2013-1860)
An information leak in the Linux kernel's dcb netlink interface was discovered. A local user could obtain sensitive information by examining kernel stack memory. (CVE-2013-2634)
A kernel stack information leak was discovered in the RTNETLINK component of the Linux kernel. A local user could read sensitive information from the kernel stack. (CVE-2013-2635)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 LTS: linux-image-3.5.0-28-generic 3.5.0-28.48~precise1
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-1812-1 CVE-2012-6548, CVE-2012-6549, CVE-2013-0913, CVE-2013-1796, CVE-2013-1797, CVE-2013-1798, CVE-2013-1848, CVE-2013-1860, CVE-2013-2634, CVE-2013-2635
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-quantal/3.5.0-28.48~precise1
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