drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
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ID: |
USN-1767-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS |
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Datum: |
Mo, 18. März 2013, 23:42 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0190
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0216
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0217
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0228
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0231
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0268
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0311
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0313
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0349
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1774 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-1767-1 March 18, 2013
linux 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: Linux kernel
Details:
Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. (CVE-2013-0190)
A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. (CVE-2013-0216)
A memory leak was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS could trigger this flaw to cause a denial of service on the system. (CVE-2013-0217)
Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service (crash the system) or gain guest OS privilege. (CVE-2013-0228)
A flaw was discovered in the Linux kernel Xen PCI backend driver. If a PCI device is assigned to the guest OS, the guest OS could exploit this flaw to cause a denial of service on the host. (CVE-2013-0231)
A flaw was reported in the permission checks done by the Linux kernel for /dev/cpu/*/msr. A local root user with all capabilities dropped could exploit this flaw to execute code with full root capabilities. (CVE-2013-0268)
A flaw was discovered in the Linux kernel's vhost driver used to accelerate guest networking in KVM based virtual machines. A privileged guest user could exploit this flaw to crash the host system. (CVE-2013-0311)
A flaw was discovered in the Extended Verification Module (EVM) of the Linux kernel. An unprivileged local user code exploit this flaw to cause a denial of service (system crash). (CVE-2013-0313)
An information leak was discovered in the Linux kernel's Bluetooth stack when HIDP (Human Interface Device Protocol) support is enabled. A local unprivileged user could exploit this flaw to cause an information leak from the kernel. (CVE-2013-0349)
A flaw was discovered in the Edgeort USB serial converter driver when the device is disconnected while it is in use. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-1774)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 LTS: linux-image-3.2.0-39-generic 3.2.0-39.62 linux-image-3.2.0-39-generic-pae 3.2.0-39.62 linux-image-3.2.0-39-highbank 3.2.0-39.62 linux-image-3.2.0-39-omap 3.2.0-39.62 linux-image-3.2.0-39-powerpc-smp 3.2.0-39.62 linux-image-3.2.0-39-powerpc64-smp 3.2.0-39.62 linux-image-3.2.0-39-virtual 3.2.0-39.62
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-1767-1 CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774
Package Information: https://launchpad.net/ubuntu/+source/linux/3.2.0-39.62
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