var-201401-0178
Vulnerability from variot
The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) via unspecified vectors. Xen is an open source virtual machine monitor developed by the University of Cambridge. Xen 4.2.x, 4.3.x have errors related to mapping authorization references. A domain can be exploited to leak, and then another domain that shares the driver domain is denied service status. Xen is prone to a denial-of-service vulnerability. Successful exploits may allow an attacker to cause a denial-of-service condition. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201407-03
http://security.gentoo.org/
Severity: High Title: Xen: Multiple Vunlerabilities Date: July 16, 2014 Bugs: #440768, #484478, #486354, #497082, #497084, #497086, #499054, #499124, #500528, #500530, #500536, #501080, #501906, #505714, #509054, #513824 ID: 201407-03
Synopsis
Multiple vulnerabilities have been found in Xen, the worst of which could lead to arbitrary code execution.
Background
Xen is a bare-metal hypervisor.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulations/xen < 4.3.2-r4 >= 4.3.2-r4 >= 4.2.4-r4 2 app-emulations/xen-tools < 4.3.2-r5 >= 4.3.2-r5 >= 4.2.4-r6 3 app-emulations/xen-pvgrub < 4.3.2 >= 4.3.2 >= 4.2.4 ------------------------------------------------------------------- 3 affected packages
Description
Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details.
Impact
A remote attacker can utilize multiple vectors to execute arbitrary code, cause Denial of Service, or gain access to data on the host.
Workaround
There is no known workaround at this time.
Resolution
All Xen 4.3 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-emulations/xen-4.3.2-r2"
All Xen 4.2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-emulations/xen-4.2.4-r2"
All xen-tools 4.3 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulations/xen-tools-4.3.2-r2"
All xen-tools 4.2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulations/xen-tools-4.2.4-r2"
All Xen PVGRUB 4.3 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulations/xen-pvgrub-4.3.2"
All Xen PVGRUB 4.2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot -v ">=app-emulations/xen-pvgrub-4.2.4"
References
[ 1 ] CVE-2013-1442 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1442 [ 2 ] CVE-2013-4329 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4329 [ 3 ] CVE-2013-4355 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4355 [ 4 ] CVE-2013-4356 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4356 [ 5 ] CVE-2013-4361 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4361 [ 6 ] CVE-2013-4368 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4368 [ 7 ] CVE-2013-4369 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4369 [ 8 ] CVE-2013-4370 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4370 [ 9 ] CVE-2013-4371 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4371 [ 10 ] CVE-2013-4375 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4375 [ 11 ] CVE-2013-4416 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4416 [ 12 ] CVE-2013-4494 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4494 [ 13 ] CVE-2013-4551 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4551 [ 14 ] CVE-2013-4553 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4553 [ 15 ] CVE-2013-4554 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4554 [ 16 ] CVE-2013-6375 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6375 [ 17 ] CVE-2013-6400 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6400 [ 18 ] CVE-2013-6885 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6885 [ 19 ] CVE-2013-6885 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6885 [ 20 ] CVE-2014-1642 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1642 [ 21 ] CVE-2014-1666 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1666 [ 22 ] CVE-2014-1891 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1891 [ 23 ] CVE-2014-1892 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1892 [ 24 ] CVE-2014-1893 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1893 [ 25 ] CVE-2014-1894 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1894 [ 26 ] CVE-2014-1895 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1895 [ 27 ] CVE-2014-1896 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1896 [ 28 ] CVE-2014-2599 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-2599 [ 29 ] CVE-2014-3124 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3124 [ 30 ] CVE-2014-4021 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-4021
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201407-03.xml
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2014 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5 . ============================================================================ Ubuntu Security Notice USN-2092-1 January 30, 2014
qemu, qemu-kvm vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
Summary:
Several security issues were fixed in QEMU.
Software Description: - qemu: Machine emulator and virtualizer - qemu-kvm: Machine emulator and virtualizer
Details:
Asias He discovered that QEMU incorrectly handled SCSI controllers with more than 256 attached devices. A local user could possibly use this flaw to elevate privileges. (CVE-2013-4344)
It was discovered that QEMU incorrectly handled Xen disks. A local guest could possibly use this flaw to consume resources, resulting in a denial of service. This issue only affected Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4375)
Sibiao Luo discovered that QEMU incorrectly handled device hot-unplugging. A local user could possibly use this flaw to cause a denial of service. This issue only affected Ubuntu 13.10. (CVE-2013-4377)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 13.10: qemu-system 1.5.0+dfsg-3ubuntu5.3 qemu-system-arm 1.5.0+dfsg-3ubuntu5.3 qemu-system-mips 1.5.0+dfsg-3ubuntu5.3 qemu-system-misc 1.5.0+dfsg-3ubuntu5.3 qemu-system-ppc 1.5.0+dfsg-3ubuntu5.3 qemu-system-sparc 1.5.0+dfsg-3ubuntu5.3 qemu-system-x86 1.5.0+dfsg-3ubuntu5.3
Ubuntu 12.10: qemu-kvm 1.2.0+noroms-0ubuntu2.12.10.6
Ubuntu 12.04 LTS: qemu-kvm 1.0+noroms-0ubuntu14.13
After a standard system update you need to reboot your computer to make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-2092-1 CVE-2013-4344, CVE-2013-4375, CVE-2013-4377
Package Information: https://launchpad.net/ubuntu/+source/qemu/1.5.0+dfsg-3ubuntu5.3 https://launchpad.net/ubuntu/+source/qemu-kvm/1.2.0+noroms-0ubuntu2.12.10.6 https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.13
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"data": "The qdisk PV disk backend in qemu-xen in Xen 4.2.x and 4.3.x before 4.3.1, and qemu 1.1 and other versions, allows local HVM guests to cause a denial of service (domain grant reference consumption) via unspecified vectors. Xen is an open source virtual machine monitor developed by the University of Cambridge. Xen 4.2.x, 4.3.x have errors related to mapping authorization references. A domain can be exploited to leak, and then another domain that shares the driver domain is denied service status. Xen is prone to a denial-of-service vulnerability. \nSuccessful exploits may allow an attacker to cause a denial-of-service condition. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 201407-03\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n http://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n Title: Xen: Multiple Vunlerabilities\n Date: July 16, 2014\n Bugs: #440768, #484478, #486354, #497082, #497084, #497086,\n #499054, #499124, #500528, #500530, #500536, #501080,\n #501906, #505714, #509054, #513824\n ID: 201407-03\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Xen, the worst of which\ncould lead to arbitrary code execution. \n\nBackground\n==========\n\nXen is a bare-metal hypervisor. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 app-emulations/xen \u003c 4.3.2-r4 \u003e= 4.3.2-r4 \n *\u003e= 4.2.4-r4 \n 2 app-emulations/xen-tools\n \u003c 4.3.2-r5 \u003e= 4.3.2-r5 \n *\u003e= 4.2.4-r6 \n 3 app-emulations/xen-pvgrub\n \u003c 4.3.2 *\u003e= 4.3.2 \n *\u003e= 4.2.4 \n -------------------------------------------------------------------\n 3 affected packages\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Xen. Please review the\nCVE identifiers referenced below for details. \n\nImpact\n======\n\nA remote attacker can utilize multiple vectors to execute arbitrary\ncode, cause Denial of Service, or gain access to data on the host. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Xen 4.3 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=app-emulations/xen-4.3.2-r2\"\n\nAll Xen 4.2 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=app-emulations/xen-4.2.4-r2\"\n\nAll xen-tools 4.3 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot -v \"\u003e=app-emulations/xen-tools-4.3.2-r2\"\n\nAll xen-tools 4.2 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot -v \"\u003e=app-emulations/xen-tools-4.2.4-r2\"\n\nAll Xen PVGRUB 4.3 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot -v \"\u003e=app-emulations/xen-pvgrub-4.3.2\"\n\nAll Xen PVGRUB 4.2 users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot -v \"\u003e=app-emulations/xen-pvgrub-4.2.4\"\n\nReferences\n==========\n\n[ 1 ] CVE-2013-1442\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1442\n[ 2 ] CVE-2013-4329\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4329\n[ 3 ] CVE-2013-4355\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4355\n[ 4 ] CVE-2013-4356\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4356\n[ 5 ] CVE-2013-4361\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4361\n[ 6 ] CVE-2013-4368\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4368\n[ 7 ] CVE-2013-4369\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4369\n[ 8 ] CVE-2013-4370\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4370\n[ 9 ] CVE-2013-4371\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4371\n[ 10 ] CVE-2013-4375\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4375\n[ 11 ] CVE-2013-4416\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4416\n[ 12 ] CVE-2013-4494\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4494\n[ 13 ] CVE-2013-4551\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4551\n[ 14 ] CVE-2013-4553\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4553\n[ 15 ] CVE-2013-4554\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4554\n[ 16 ] CVE-2013-6375\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6375\n[ 17 ] CVE-2013-6400\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6400\n[ 18 ] CVE-2013-6885\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6885\n[ 19 ] CVE-2013-6885\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6885\n[ 20 ] CVE-2014-1642\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1642\n[ 21 ] CVE-2014-1666\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1666\n[ 22 ] CVE-2014-1891\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1891\n[ 23 ] CVE-2014-1892\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1892\n[ 24 ] CVE-2014-1893\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1893\n[ 25 ] CVE-2014-1894\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1894\n[ 26 ] CVE-2014-1895\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1895\n[ 27 ] CVE-2014-1896\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-1896\n[ 28 ] CVE-2014-2599\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-2599\n[ 29 ] CVE-2014-3124\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-3124\n[ 30 ] CVE-2014-4021\n http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-4021\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n http://security.gentoo.org/glsa/glsa-201407-03.xml\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2014 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n. ============================================================================\nUbuntu Security Notice USN-2092-1\nJanuary 30, 2014\n\nqemu, qemu-kvm vulnerabilities\n============================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 13.10\n- Ubuntu 12.10\n- Ubuntu 12.04 LTS\n\nSummary:\n\nSeveral security issues were fixed in QEMU. \n\nSoftware Description:\n- qemu: Machine emulator and virtualizer\n- qemu-kvm: Machine emulator and virtualizer\n\nDetails:\n\nAsias He discovered that QEMU incorrectly handled SCSI controllers with\nmore than 256 attached devices. A local user could possibly use this flaw\nto elevate privileges. (CVE-2013-4344)\n\nIt was discovered that QEMU incorrectly handled Xen disks. A local guest\ncould possibly use this flaw to consume resources, resulting in a denial of\nservice. This issue only affected Ubuntu 12.10 and Ubuntu 13.10. \n(CVE-2013-4375)\n\nSibiao Luo discovered that QEMU incorrectly handled device hot-unplugging. \nA local user could possibly use this flaw to cause a denial of service. \nThis issue only affected Ubuntu 13.10. (CVE-2013-4377)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 13.10:\n qemu-system 1.5.0+dfsg-3ubuntu5.3\n qemu-system-arm 1.5.0+dfsg-3ubuntu5.3\n qemu-system-mips 1.5.0+dfsg-3ubuntu5.3\n qemu-system-misc 1.5.0+dfsg-3ubuntu5.3\n qemu-system-ppc 1.5.0+dfsg-3ubuntu5.3\n qemu-system-sparc 1.5.0+dfsg-3ubuntu5.3\n qemu-system-x86 1.5.0+dfsg-3ubuntu5.3\n\nUbuntu 12.10:\n qemu-kvm 1.2.0+noroms-0ubuntu2.12.10.6\n\nUbuntu 12.04 LTS:\n qemu-kvm 1.0+noroms-0ubuntu14.13\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nReferences:\n http://www.ubuntu.com/usn/usn-2092-1\n CVE-2013-4344, CVE-2013-4375, CVE-2013-4377\n\nPackage Information:\n https://launchpad.net/ubuntu/+source/qemu/1.5.0+dfsg-3ubuntu5.3\n https://launchpad.net/ubuntu/+source/qemu-kvm/1.2.0+noroms-0ubuntu2.12.10.6\n https://launchpad.net/ubuntu/+source/qemu-kvm/1.0+noroms-0ubuntu14.13\n",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.