ID CVE-2011-1936
Summary Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.
References
Vulnerable Configurations
  • Xen
    cpe:2.3:o:xen:xen
CVSS
Base: 4.6 (as of 08-01-2014 - 03:04)
Impact:
Exploitability:
Access
VectorComplexityAuthentication
ADJACENT_NETWORK HIGH NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id SUSE_XEN-201108-7703.NASL
    description This update fixes various bugs in XEN : The following security issues have been fixed : - A denial of service (Host Crash) in the XEN hypervisor. (CVE-2011-2901) - A bug was found in the way Xen handles CPUID instruction emulation during VM exits. An unprivileged guest user can potentially use this flaw to crash the guest. (CVE-2011-1936) - A 64-bit guest can get one of its vcpus into non-kernel mode without first providing a valid non-kernel pagetable. The observed failure mode was usually a hard lockup of the host (host denial of service). (CVE-2011-1166) It fixes also the following bugs : - SLES 10 SP3 XEN: Device /dev/xvdp is already connected error when starting multiple vm's. (bnc#654798) - HVM taking too long to dump vmcore. (bnc#684297)
    last seen 2019-02-21
    modified 2014-01-09
    plugin id 56618
    published 2011-10-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56618
    title SuSE 10 Security Update : Xen (ZYPP Patch Number 7703)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_XEN-7654.NASL
    description A security bug was fixed in Xen - A bug was found in the way Xen handles CPUID instruction emulation during VM exits. An unprivileged guest user can potentially use this flaw to crash the guest. (CVE-2011-1936) This issue only affected systems running on x86 architecture with Intel processor and VMX virtualization extension enabled.
    last seen 2019-02-21
    modified 2014-02-26
    plugin id 57266
    published 2011-12-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57266
    title SuSE 10 Security Update : Xen (ZYPP Patch Number 7654)
  • NASL family VMware ESX Local Security Checks
    NASL id VMWARE_VMSA-2012-0001.NASL
    description a. ESX third-party update for Service Console kernel The ESX Service Console Operating System (COS) kernel is updated to kernel-2.6.18-274.3.1.el5 to fix multiple security issues in the COS kernel. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2011-0726, CVE-2011-1078, CVE-2011-1079, CVE-2011-1080, CVE-2011-1093, CVE-2011-1163, CVE-2011-1166, CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-1494, CVE-2011-1495, CVE-2011-1577, CVE-2011-1763, CVE-2010-4649, CVE-2011-0695, CVE-2011-0711, CVE-2011-1044, CVE-2011-1182, CVE-2011-1573, CVE-2011-1576, CVE-2011-1593, CVE-2011-1745, CVE-2011-1746, CVE-2011-1776, CVE-2011-1936, CVE-2011-2022, CVE-2011-2213, CVE-2011-2492, CVE-2011-1780, CVE-2011-2525, CVE-2011-2689, CVE-2011-2482, CVE-2011-2491, CVE-2011-2495, CVE-2011-2517, CVE-2011-2519, CVE-2011-2901 to these issues. b. ESX third-party update for Service Console cURL RPM The ESX Service Console (COS) curl RPM is updated to cURL-7.15.5.9 resolving a security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2011-2192 to this issue. c. ESX third-party update for Service Console nspr and nss RPMs The ESX Service Console (COS) nspr and nss RPMs are updated to nspr-4.8.8-1.el5_7 and nss-3.12.10-4.el5_7 respectively resolving a security issues. A Certificate Authority (CA) issued fraudulent SSL certificates and Netscape Portable Runtime (NSPR) and Network Security Services (NSS) contain the built-in tokens of this fraudulent Certificate Authority. This update renders all SSL certificates signed by the fraudulent CA as untrusted for all uses. d. ESX third-party update for Service Console rpm RPMs The ESX Service Console Operating System (COS) rpm packages are updated to popt-1.10.2.3-22.el5_7.2, rpm-4.4.2.3-22.el5_7.2, rpm-libs-4.4.2.3-22.el5_7.2 and rpm-python-4.4.2.3-22.el5_7.2 which fixes multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-2059 and CVE-2011-3378 to these issues. e. ESX third-party update for Service Console samba RPMs The ESX Service Console Operating System (COS) samba packages are updated to samba-client-3.0.33-3.29.el5_7.4, samba-common-3.0.33-3.29.el5_7.4 and libsmbclient-3.0.33-3.29.el5_7.4 which fixes multiple security issues in the Samba client. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-0547, CVE-2010-0787, CVE-2011-1678, CVE-2011-2522 and CVE-2011-2694 to these issues. Note that ESX does not include the Samba Web Administration Tool (SWAT) and therefore ESX COS is not affected by CVE-2011-2522 and CVE-2011-2694. f. ESX third-party update for Service Console python package The ESX Service Console (COS) python package is updated to 2.4.3-44 which fixes multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2009-3720, CVE-2010-3493, CVE-2011-1015 and CVE-2011-1521 to these issues. g. ESXi update to third-party component python The python third-party library is updated to python 2.5.6 which fixes multiple security issues. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2009-3560, CVE-2009-3720, CVE-2010-1634, CVE-2010-2089, and CVE-2011-1521 to these issues.
    last seen 2019-02-21
    modified 2018-09-06
    plugin id 57749
    published 2012-01-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=57749
    title VMSA-2012-0001 : VMware ESXi and ESX updates to third-party library and ESX Service Console
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-0927.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important) * A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. (CVE-2011-0695, Important) * A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important) * Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important) * An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important) * A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate) * An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate) * A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate) * A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate) * A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low) * A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low) * A missing validation check was found in the signals implementation. A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low) * A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low) * Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low) Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695; Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492. Bug fix documentation will be available shortly from the Technical Notes document linked to in the References. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-20
    plugin id 55597
    published 2011-07-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55597
    title RHEL 5 : kernel (RHSA-2011:0927)
  • NASL family Misc.
    NASL id VMWARE_VMSA-2012-0001_REMOTE.NASL
    description The remote VMware ESX / ESXi host is missing a security-related patch. It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several third-party libraries : - COS kernel - cURL - python - rpm
    last seen 2019-02-21
    modified 2018-08-16
    plugin id 89105
    published 2016-03-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89105
    title VMware ESX / ESXi Service Console and Third-Party Libraries Multiple Vulnerabilities (VMSA-2012-0001) (remote check)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-0927.NASL
    description From Red Hat Security Advisory 2011:0927 : Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important) * A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. (CVE-2011-0695, Important) * A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important) * Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important) * An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important) * A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate) * An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate) * A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate) * A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate) * A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low) * A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low) * A missing validation check was found in the signals implementation. A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low) * A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low) * Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low) Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695; Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492. Bug fix documentation will be available shortly from the Technical Notes document linked to in the References. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-06-29
    plugin id 68304
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68304
    title Oracle Linux 5 : kernel (ELSA-2011-0927)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110715_KERNEL_ON_SL5_X.NASL
    description The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : - An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important) - A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. (CVE-2011-0695, Important) - A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important) - Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important) - An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important) - A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate) - An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate) - A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate) - A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate) - A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low) - A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low) - A missing validation check was found in the signals implementation. A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low) - A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low) - Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low) This update fixes several bugs. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61083
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61083
    title Scientific Linux Security Update : kernel on SL5.x i386/x86_64
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2011-0927.NASL
    description Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues : * An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important) * A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. (CVE-2011-0695, Important) * A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important) * Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important) * An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important) * A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate) * An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate) * A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate) * A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate) * A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low) * A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low) * A missing validation check was found in the signals implementation. A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low) * A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low) * Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low) Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695; Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492. Bug fix documentation will be available shortly from the Technical Notes document linked to in the References. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 55609
    published 2011-07-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55609
    title CentOS 5 : kernel (CESA-2011:0927)
redhat via4
advisories
rhsa
id RHSA-2011:0927
rpms
  • kernel-0:2.6.18-238.19.1.el5
  • kernel-PAE-0:2.6.18-238.19.1.el5
  • kernel-PAE-devel-0:2.6.18-238.19.1.el5
  • kernel-debug-0:2.6.18-238.19.1.el5
  • kernel-debug-devel-0:2.6.18-238.19.1.el5
  • kernel-devel-0:2.6.18-238.19.1.el5
  • kernel-doc-0:2.6.18-238.19.1.el5
  • kernel-headers-0:2.6.18-238.19.1.el5
  • kernel-kdump-0:2.6.18-238.19.1.el5
  • kernel-kdump-devel-0:2.6.18-238.19.1.el5
  • kernel-xen-0:2.6.18-238.19.1.el5
  • kernel-xen-devel-0:2.6.18-238.19.1.el5
refmap via4
mlist [oss-security] 20110707 CVE-2011-1780, CVE-2011-1936, kernel/xen issues
vmware via4
description The ESX Service Console Operating System (COS) kernel is updated to kernel-2.6.18-274.3.1.el5 to fix multiple security issues in the COS kernel.
id VMSA-2012-0001
last_updated 2012-03-29T00:00:00
published 2012-01-30T00:00:00
title ESX third party update for Service Console kernel
Last major update 25-02-2014 - 09:10
Published 07-01-2014 - 14:55
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