drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Xen
Name: |
Mehrere Probleme in Xen |
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ID: |
DSA-2666-1 |
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Distribution: |
Debian |
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Plattformen: |
Debian sid, Debian squeeze, Debian wheezy, Debian jessie |
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Datum: |
Mo, 13. Mai 2013, 08:31 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1918
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1952
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1964 |
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Applikationen: |
Xen |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
- ------------------------------------------------------------------------- Debian Security Advisory DSA-2666-1 security@debian.org http://www.debian.org/security/ Salvatore Bonaccorso May 12, 2013 http://www.debian.org/security/faq - -------------------------------------------------------------------------
Package : xen Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2013-1918 CVE-2013-1952 CVE-2013-1964
Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2013-1918 (XSA 45) Several long latency operations are not preemptible
Some page table manipulation operations for PV guests were not made preemptible, allowing a malicious or buggy PV guest kernel to mount a denial of service attack affecting the whole system.
CVE-2013-1952 (XSA 49) VT-d interrupt remapping source validation flaw for bridges
Due to missing source validation on interrupt remapping table entries for MSI interrupts set up by bridge devices, a malicious domain with access to such a device, can mount a denial of service attack affecting the whole system.
CVE-2013-1964 (XSA 50) grant table hypercall acquire/release imbalance
When releasing a particular, non-transitive grant after doing a grant copy operation Xen incorrectly releases an unrelated grant reference, leading possibly to a crash of the host system. Furthermore information leakage or privilege escalation cannot be ruled out.
For the oldstable distribution (squeeze), these problems have been fixed in version 4.0.1-5.11.
For the stable distribution (wheezy), these problems have been fixed in version 4.1.4-3+deb7u1.
For the testing distribution (jessie), these problems have been fixed in version 4.1.4-4.
For the unstable distribution (sid), these problems have been fixed in version 4.1.4-4.
Note that for the stable (wheezy), testing and unstable distribution, CVE-2013-1964 (XSA 50) was already fixed in version 4.1.4-3.
We recommend that you upgrade your xen packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/
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