arch/ia64/xen/faults.c in Xen 3.4 and 4.0 in Linux kernel 2.6.18, and possibly other kernel versions, when running on IA-64 architectures, allows local users to cause a denial of service and "turn on BE by modifying the user mask of the PSR," as demonstrated via exploitation of CVE-2006-0742.

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 components and libraries :

  - Apache Tomcat 
  - Apache Tomcat Manager
  - cURL 
  - Java Runtime Environment (JRE)
  - Kernel 
  - Microsoft SQL Express
  - OpenSSL
  - pam_krb5

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0610 advisory.

    - [fs] xfs: don't let swapext operate on write-only files (Jiri Pirko) [605160 605161] {CVE-2010-2226}
    - [fs] nfs: fix bug in nfsd4 read_buf (Jiri Olsa) [612034 612035] {CVE-2010-2521}
    - [fs] cifs: reject DNS upcall add_key req from userspace (Jeff Layton) [612170 612171] {CVE-2010-2524}
    - [security] keys: new key flag for add_key from userspace (Jeff Layton) [612170 612171] {CVE-2010-2524}
    - [fs] cifs: fix kernel BUG with remote OS/2 server (Jeff Layton) [608587 608588] {CVE-2010-2248}
    - [net] bluetooth: fix possible bad memory access via sysfs (Mauro Carvalho Chehab) [576020 576021]     {CVE-2010-1084}
    - [xen] ia64: unset be from the task psr (Andrew Jones) [587475 587477] {CVE-2010-2070}
    - [fs] ext4: MOVE_EXT can't overwrite append-only files (Eric Sandeen) [601007 601008] {CVE-2010-2066}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update fixes the following security issues :

  - instances of unsafe sprintf() use were found in the     Linux kernel Bluetooth implementation. Creating a large     number of Bluetooth L2CAP, SCO, or RFCOMM sockets could     result in arbitrary memory pages being overwritten. A     local, unprivileged user could use this flaw to cause a     kernel panic (denial of service) or escalate their     privileges. (CVE-2010-1084, Important)

  - a flaw was found in the Xen hypervisor implementation     when using the Intel Itanium architecture, allowing     guests to enter an unsupported state. An unprivileged     guest user could trigger this flaw by setting the BE     (Big Endian) bit of the Processor Status Register (PSR),     leading to the guest crashing (denial of service).
    (CVE-2010-2070, Important)

  - a flaw was found in the CIFSSMBWrite() function in the     Linux kernel Common Internet File System (CIFS)     implementation. A remote attacker could send a specially     crafted SMB response packet to a target CIFS client,     resulting in a kernel panic (denial of service).
    (CVE-2010-2248, Important)

  - buffer overflow flaws were found in the Linux kernel's     implementation of the server-side External Data     Representation (XDR) for the Network File System (NFS)     version 4. An attacker on the local network could send a     specially crafted large compound request to the NFSv4     server, which could possibly result in a kernel panic     (denial of service) or, potentially, code execution.
    (CVE-2010-2521, Important)

  - a flaw was found in the handling of the SWAPEXT IOCTL in     the Linux kernel XFS file system implementation. A local     user could use this flaw to read write-only files, that     they do not own, on an XFS file system. This could lead     to unintended information disclosure. (CVE-2010-2226,     Moderate)

  - a flaw was found in the dns_resolver upcall used by     CIFS. A local, unprivileged user could redirect a     Microsoft Distributed File System link to another IP     address, tricking the client into mounting the share     from a server of the user's choosing. (CVE-2010-2524,     Moderate)

  - a missing check was found in the mext_check_arguments()     function in the ext4 file system code. A local user     could use this flaw to cause the MOVE_EXT IOCTL to     overwrite the contents of an append-only file on an ext4     file system, if they have write permissions for that     file. (CVE-2010-2066, Low)

The system must be rebooted for this update to take effect.

a. vCenter Server and vCenter Update Manager update Microsoft    SQL Server 2005 Express Edition to Service Pack 3

   Microsoft SQL Server 2005 Express Edition (SQL Express)    distributed with vCenter Server 4.1 Update 1 and vCenter Update    Manager 4.1 Update 1 is upgraded from  SQL Express Service Pack 2    to SQL Express Service Pack 3, to address multiple security    issues that exist in the earlier releases of Microsoft SQL Express.

   Customers using other database solutions need not update for    these issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2008-5416, CVE-2008-0085, CVE-2008-0086,    CVE-2008-0107 and CVE-2008-0106 to the issues addressed in MS SQL    Express Service Pack 3.

b. vCenter Apache Tomcat Management Application Credential Disclosure

   The Apache Tomcat Manager application configuration file contains    logon credentials that can be read by unprivileged local users.

   The issue is resolved by removing the Manager application in    vCenter 4.1 Update 1.

   If vCenter 4.1 is updated to vCenter 4.1 Update 1 the logon    credentials are not present in the configuration file after the    update.

   VMware would like to thank Claudio Criscione of Secure Networking    for reporting this issue to us.

   The Common Vulnerabilities and Exposures Project (cve.mitre.org)    has assigned the name CVE-2010-2928 to this issue.

c. vCenter Server and ESX, Oracle (Sun) JRE is updated to version    1.6.0_21

   Oracle (Sun) JRE update to version 1.6.0_21, which addresses    multiple security issues that existed in earlier releases of    Oracle (Sun) JRE.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the following names to the security issues fixed in    Oracle (Sun) JRE 1.6.0_19: CVE-2009-3555, CVE-2010-0082,    CVE-2010-0084, CVE-2010-0085, CVE-2010-0087, CVE-2010-0088,    CVE-2010-0089, CVE-2010-0090, CVE-2010-0091, CVE-2010-0092,    CVE-2010-0093, CVE-2010-0094, CVE-2010-0095, CVE-2010-0837,    CVE-2010-0838, CVE-2010-0839, CVE-2010-0840, CVE-2010-0841,    CVE-2010-0842, CVE-2010-0843, CVE-2010-0844, CVE-2010-0845,    CVE-2010-0846, CVE-2010-0847, CVE-2010-0848, CVE-2010-0849,    CVE-2010-0850.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the following name to the security issue fixed in    Oracle (Sun) JRE 1.6.0_20: CVE-2010-0886.

d. vCenter Update Manager Oracle (Sun) JRE is updated to version   1.5.0_26

   Oracle (Sun) JRE update to version 1.5.0_26, which addresses    multiple security issues that existed in earlier releases of    Oracle (Sun) JRE.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the following names to the security issues fixed in    Oracle (Sun) JRE 1.5.0_26: CVE-2010-3556, CVE-2010-3566,    CVE-2010-3567, CVE-2010-3550, CVE-2010-3561, CVE-2010-3573,    CVE-2010-3565,CVE-2010-3568, CVE-2010-3569,  CVE-2009-3555,    CVE-2010-1321, CVE-2010-3548, CVE-2010-3551, CVE-2010-3562,    CVE-2010-3571, CVE-2010-3554, CVE-2010-3559, CVE-2010-3572,    CVE-2010-3553, CVE-2010-3549, CVE-2010-3557, CVE-2010-3541,    CVE-2010-3574.

e. vCenter Server and ESX Apache Tomcat updated to version 6.0.28

   Apache Tomcat updated to version 6.0.28, which addresses multiple    security issues that existed in earlier releases of Apache Tomcat

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the following names to the security issues fixed in    Apache Tomcat 6.0.24: CVE-2009-2693, CVE-2009-2901, CVE-2009-2902,i    and CVE-2009-3548.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the following names to the security issues fixed in    Apache Tomcat 6.0.28: CVE-2010-2227, CVE-2010-1157.

f. vCenter Server third-party component OpenSSL updated to version    0.9.8n

   The version of the OpenSSL library in vCenter Server is updated to    0.9.8n.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-0740 and CVE-2010-0433 to the    issues addressed in this version of OpenSSL.

g. ESX third-party component OpenSSL updated to version 0.9.8p

   The version of the ESX OpenSSL library is updated to 0.9.8p.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-3864 and CVE-2010-2939 to the    issues addressed in this update.

h. ESXi third-party component cURL updated

   The version of cURL library in ESXi is updated.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2010-0734 to the issues addressed in    this update.

i. ESX third-party component pam_krb5 updated

   The version of pam_krb5 library is updated.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2008-3825 and CVE-2009-1384 to the    issues addressed in the update.

j. ESX third-party update for Service Console kernel

   The Service Console kernel is updated to include kernel version    2.6.18-194.11.1.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-1084, CVE-2010-2066, CVE-2010-2070,    CVE-2010-2226, CVE-2010-2248, CVE-2010-2521, CVE-2010-2524,    CVE-2010-0008, CVE-2010-0415, CVE-2010-0437, CVE-2009-4308,    CVE-2010-0003, CVE-2010-0007, CVE-2010-0307, CVE-2010-1086,    CVE-2010-0410, CVE-2010-0730, CVE-2010-1085, CVE-2010-0291,    CVE-2010-0622, CVE-2010-1087, CVE-2010-1173, CVE-2010-1437,    CVE-2010-1088, CVE-2010-1187, CVE-2010-1436, CVE-2010-1641, and    CVE-2010-3081 to the issues addressed in the update.

   Notes :
   - The update also addresses the 64-bit compatibility mode    stack pointer underflow issue identified by CVE-2010-3081. This    issue was patched in an ESX 4.1 patch prior to the release of    ESX 4.1 Update 1 and in a previous ESX 4.0 patch release.
   - The update also addresses CVE-2010-2240 for ESX 4.0.

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2010:0610 advisory.

  - kernel: bluetooth: potential bad memory access with sysfs files (CVE-2010-1084)

  - kernel: ext4: Make sure the MOVE_EXT ioctl can't overwrite append-only files (CVE-2010-2066)

  - /kernel/security/CVE-2006-0742 test cause kernel-xen panic on ia64 (CVE-2010-2070)

  - kernel: xfs swapext ioctl minor security issue (CVE-2010-2226)

  - kernel: cifs: Fix a kernel BUG with remote OS/2 server (CVE-2010-2248)

  - kernel: nfsd4: bug in read_buf (CVE-2010-2521)

  - kernel: dns_resolver upcall security issue (CVE-2010-2524)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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 :

* instances of unsafe sprintf() use were found in the Linux kernel Bluetooth implementation. Creating a large number of Bluetooth L2CAP, SCO, or RFCOMM sockets could result in arbitrary memory pages being overwritten. A local, unprivileged user could use this flaw to cause a kernel panic (denial of service) or escalate their privileges.
(CVE-2010-1084, Important)

* a flaw was found in the Xen hypervisor implementation when using the Intel Itanium architecture, allowing guests to enter an unsupported state. An unprivileged guest user could trigger this flaw by setting the BE (Big Endian) bit of the Processor Status Register (PSR), leading to the guest crashing (denial of service). (CVE-2010-2070, Important)

* a flaw was found in the CIFSSMBWrite() function in the Linux kernel Common Internet File System (CIFS) implementation. A remote attacker could send a specially crafted SMB response packet to a target CIFS client, resulting in a kernel panic (denial of service).
(CVE-2010-2248, Important)

* buffer overflow flaws were found in the Linux kernel's implementation of the server-side External Data Representation (XDR) for the Network File System (NFS) version 4. An attacker on the local network could send a specially crafted large compound request to the NFSv4 server, which could possibly result in a kernel panic (denial of service) or, potentially, code execution. (CVE-2010-2521, Important)

* a flaw was found in the handling of the SWAPEXT IOCTL in the Linux kernel XFS file system implementation. A local user could use this flaw to read write-only files, that they do not own, on an XFS file system. This could lead to unintended information disclosure.
(CVE-2010-2226, Moderate)

* a flaw was found in the dns_resolver upcall used by CIFS. A local, unprivileged user could redirect a Microsoft Distributed File System link to another IP address, tricking the client into mounting the share from a server of the user's choosing. (CVE-2010-2524, Moderate)

* a missing check was found in the mext_check_arguments() function in the ext4 file system code. A local user could use this flaw to cause the MOVE_EXT IOCTL to overwrite the contents of an append-only file on an ext4 file system, if they have write permissions for that file.
(CVE-2010-2066, Low)

Red Hat would like to thank Neil Brown for reporting CVE-2010-1084, and Dan Rosenberg for reporting CVE-2010-2226 and CVE-2010-2066.

This update also fixes several bugs. Documentation for these bug fixes 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. The system must be rebooted for this update to take effect.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2010-0610.

ID	Name	Product	Family	Severity
89674	VMware ESX / ESXi Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0003) (remote check)	Nessus	Misc.	high
68081	Oracle Linux 5 : kernel (ELSA-2010-0610)	Nessus	Oracle Linux Local Security Checks	high
60834	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	critical
51971	VMSA-2011-0003 : Third-party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX	Nessus	VMware ESX Local Security Checks	high
48312	RHEL 5 : kernel (RHSA-2010:0610)	Nessus	Red Hat Local Security Checks	high
48301	CentOS 5 : kernel (CESA-2010:0610)	Nessus	CentOS Local Security Checks	critical
801494	CentOS RHSA-2010-0610 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2010-2070

medium

Tenable Plugins

high

high

critical

high

high

critical

high