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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:15124
[Rus]
Version
7
Class
patch
ALTXid
29801
Language
English
Severity
NotAvailable
Title
DSA-2337-1 xen -- several vulnerabilities
Description
Several vulnerabilities were discovered in the Xen virtual machine hypervisor. CVE-2011-1166 A 64-bit guest can get one of its vCPU"ss into non-kernel mode without first providing a valid non-kernel pagetable, thereby locking up the host system. CVE-2011-1583, CVE-2011-3262 Local users can cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image. CVE-2011-1898 When using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, guest OS can users to gain host OS privileges by writing to the interrupt injection registers. The old stable distribution contains a different version of Xen not affected by these problems.
Family
unix
Platform
Debian GNU/kFreeBSD 6.0
Debian GNU/Linux 6.0
Product
xen
Reference
VENDOR: DSA-2337-1
VENDOR: DSA-2337-1
Id:
DSA-2337-1
Reference:
http://lists.debian.org/debian-security-announce/2011/msg00213.html
CVE: CVE-2011-1166
CVE: CVE-2011-1166
Id:
CVE-2011-1166
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1166
Comment
: Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables.
CVSSv2 Score:
5.5
Access vector:
ADJACENT_NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:A/AC:L/Au:S/C:N/I:N/A:C
CWE:
20 (Improper Input Validation)
References:
http://wiki.xen.org/wiki/Security_Announcements#XSA-1_Host_crash_due_to_failure_to_correctly_validate_PV_kernel_execution_state. (CONFIRM)
RHSA-2011:0833 (REDHAT)
http://downloads.avaya.com/css/P8/documents/100145416 (CONFIRM)
CVE: CVE-2011-1583
CVE: CVE-2011-1583
Id:
CVE-2011-1583
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1583
Comment
: Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read in the loader involving unspecified length fields.
CVSSv2 Score:
6.9
Access vector:
LOCAL
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C
CWE:
189 (Numeric Errors)
References:
[Xen-devel] 20110509 Xen security advisory CVE-2011-1583 - pv kernel image validation (MLIST)
[Xen-devel] 20110509 Re: Xen security advisory CVE-2011-1583 - pv kernel image validation (MLIST)
RHSA-2011:0496 (REDHAT)
CVE: CVE-2011-1898
CVE: CVE-2011-1898
Id:
CVE-2011-1898
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1898
Comment
: Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to generate MSI interrupts by writing to the interrupt injection registers."
CVSSv2 Score:
7.4
Access vector:
ADJACENT_NETWORK
Access complexity:
MEDIUM
Authentication:
SINGLE
Confidentiality impact:
COMPLETE
Integrity impact:
COMPLETE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:A/AC:M/Au:S/C:C/I:C/A:C
CWE:
264 (Permissions, Privileges, and Access Controls)
References:
FEDORA-2011-8421 (FEDORA)
http://www.invisiblethingslab.com/resources/2011/Software%20Attacks%20on%20Intel%20VT-d.pdf (MISC)
http://theinvisiblethings.blogspot.com/2011/05/following-white-rabbit-software-attacks.html (MISC)
[xen-dev] 20110512 Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI (MLIST)
http://xen.org/download/index_4.0.2.html (CONFIRM)
FEDORA-2011-8403 (FEDORA)
SUSE-SU-2011:0942 (SUSE)
openSUSE-SU-2011:0941 (SUSE)
CVE: CVE-2011-3262
CVE: CVE-2011-3262
Id:
CVE-2011-3262
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3262
Comment
: tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allows local users to cause a denial of service (management software infinite loop and management domain resource consumption) via unspecified vectors related to "Lack of error checking in the decompression loop."
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CWE:
399 (Resource Management Errors)
References:
[Xen-devel] 20110509 Re: Xen security advisory CVE-2011-1583 - pv kernel image validation (MLIST)
[Xen-devel] 20110509 Xen security advisory CVE-2011-1583 - pv kernel image validation (MLIST)
55082 (SECUNIA)
GLSA-201309-24 (GENTOO)
xen-xcdombzimageloader-dos(69381) (XF)
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