drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-2442-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 10.04 LTS |
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Datum: |
Fr, 12. Dezember 2014, 11:29 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3673
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3687
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3688
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7841
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8134
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8709
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8884
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9090 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2442-1 December 12, 2014
linux-ec2 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-ec2: Linux kernel for EC2
Details:
An information leak in the Linux kernel was discovered that could leak the high 16 bits of the kernel stack address on 32-bit Kernel Virtual Machine (KVM) paravirt guests. A user in the guest OS could exploit this leak to obtain information that could potentially be used to aid in attacking the kernel. (CVE-2014-8134)
A flaw in the handling of malformed ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2014-3673)
A flaw in the handling of duplicate ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-3687)
It was discovered that excessive queuing by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel can cause memory pressure. A remote attacker could exploit this flaw to cause a denial of service. (CVE-2014-3688)
A null pointer dereference flaw was discovered in the the Linux kernel's SCTP implementation when ASCONF is used. A remote attacker could exploit this flaw to cause a denial of service (system crash) via a malformed INIT chunk. (CVE-2014-7841)
Jouni Malinen reported a flaw in the handling of fragmentation in the mac8Linux subsystem of the kernel. A remote attacker could exploit this flaw to obtain potential sensitive cleartext information by reading packets. (CVE-2014-8709)
A stack buffer overflow was discovered in the ioctl command handling for the Technotrend/Hauppauge USB DEC devices driver. A local user could exploit this flaw to cause a denial of service (system crash) or possibly gain privileges. (CVE-2014-8884)
Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment (SS) register on the x86 architecture. A local attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-9090)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04 LTS: linux-image-2.6.32-374-ec2 2.6.32-374.91
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-2442-1 CVE-2014-3673, CVE-2014-3687, CVE-2014-3688, CVE-2014-7841, CVE-2014-8134, CVE-2014-8709, CVE-2014-8884, CVE-2014-9090
Package Information: https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-374.91
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