Vulnerabilities > CVE-2007-5907 - Permissions, Privileges, and Access Controls vulnerability in Xensource INC XEN 3.1.1

047910
CVSS 4.7 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
COMPLETE
local
xensource-inc
CWE-264
nessus
NVD
Published: 2007-11-09
Updated: 2017-09-29

Summary

Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).

Vulnerable Configurations

Part Description Count
Application
Xensource_Inc
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2008-0957.NASL
    descriptionUpdated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. [Updated 12th November 2008] The original packages distributed with this errata had a bug which prevented the Xen kernel booting on older hardware. We have updated the packages to correct this bug. The kernel packages contain the Linux kernel, the core of any Linux operating system. * the Xen implementation did not prevent applications running in a para-virtualized guest from modifying CR4 TSC. This could cause a local denial of service. (CVE-2007-5907, Important) * Tavis Ormandy reported missing boundary checks in the Virtual Dynamic Shared Objects (vDSO) implementation. This could allow a local unprivileged user to cause a denial of service or escalate privileges. (CVE-2008-3527, Important) * the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local unprivileged user to obtain access to privileged information. (CVE-2008-4210, CVE-2008-3833, Important) * a flaw was found in the Linux kernel splice implementation. This could cause a local denial of service when there is a certain failure in the add_to_page_cache_lru() function. (CVE-2008-4302, Important) * a flaw was found in the Linux kernel when running on AMD64 systems. During a context switch, EFLAGS were being neither saved nor restored. This could allow a local unprivileged user to cause a denial of service. (CVE-2006-5755, Low) * a flaw was found in the Linux kernel virtual memory implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2372, Low) * an integer overflow was discovered in the Linux kernel Datagram Congestion Control Protocol (DCCP) implementation. This could allow a remote attacker to cause a denial of service. By default, remote DCCP is blocked by SELinux. (CVE-2008-3276, Low) In addition, these updated packages fix the following bugs : * random32() seeding has been improved. * in a multi-core environment, a race between the QP async event-handler and the destro_qp() function could occur. This led to unpredictable results during invalid memory access, which could lead to a kernel crash. * a format string was omitted in the call to the request_module() function. * a stack overflow caused by an infinite recursion bug in the binfmt_misc kernel module was corrected. * the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check for scatterlist usage before calling kmap_atomic(). * a sentinel NUL byte was added to the device_write() function to ensure that lspace.name is NUL-terminated. * in the character device driver, a range_is_allowed() check was added to the read_mem() and write_mem() functions. It was possible for an illegitimate application to bypass these checks, and access /dev/mem beyond the 1M limit by calling mmap_mem() instead. Also, the parameters of range_is_allowed() were changed to cleanly handle greater than 32-bits of physical address on 32-bit architectures. * some of the newer Nehalem-based systems declare their CPU DSDT entries as type
    last seen2020-06-01
    modified2020-06-02
    plugin id34690
    published2008-11-04
    reporterThis script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/34690
    titleRHEL 5 : kernel (RHSA-2008:0957)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2008:0957. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(34690);
  script_version ("1.29");
  script_cvs_date("Date: 2019/10/25 13:36:13");

  script_cve_id("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");
  script_bugtraq_id(31368);
  script_xref(name:"RHSA", value:"2008:0957");

  script_name(english:"RHEL 5 : kernel (RHSA-2008:0957)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated kernel packages that resolve several security issues and fix
various bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

[Updated 12th November 2008] The original packages distributed with
this errata had a bug which prevented the Xen kernel booting on older
hardware. We have updated the packages to correct this bug.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

* the Xen implementation did not prevent applications running in a
para-virtualized guest from modifying CR4 TSC. This could cause a
local denial of service. (CVE-2007-5907, Important)

* Tavis Ormandy reported missing boundary checks in the Virtual
Dynamic Shared Objects (vDSO) implementation. This could allow a local
unprivileged user to cause a denial of service or escalate privileges.
(CVE-2008-3527, Important)

* the do_truncate() and generic_file_splice_write() functions did not
clear the setuid and setgid bits. This could allow a local
unprivileged user to obtain access to privileged information.
(CVE-2008-4210, CVE-2008-3833, Important)

* a flaw was found in the Linux kernel splice implementation. This
could cause a local denial of service when there is a certain failure
in the add_to_page_cache_lru() function. (CVE-2008-4302, Important)

* a flaw was found in the Linux kernel when running on AMD64 systems.
During a context switch, EFLAGS were being neither saved nor restored.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2006-5755, Low)

* a flaw was found in the Linux kernel virtual memory implementation.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2008-2372, Low)

* an integer overflow was discovered in the Linux kernel Datagram
Congestion Control Protocol (DCCP) implementation. This could allow a
remote attacker to cause a denial of service. By default, remote DCCP
is blocked by SELinux. (CVE-2008-3276, Low)

In addition, these updated packages fix the following bugs :

* random32() seeding has been improved.

* in a multi-core environment, a race between the QP async
event-handler and the destro_qp() function could occur. This led to
unpredictable results during invalid memory access, which could lead
to a kernel crash.

* a format string was omitted in the call to the request_module()
function.

* a stack overflow caused by an infinite recursion bug in the
binfmt_misc kernel module was corrected.

* the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check
for scatterlist usage before calling kmap_atomic().

* a sentinel NUL byte was added to the device_write() function to
ensure that lspace.name is NUL-terminated.

* in the character device driver, a range_is_allowed() check was added
to the read_mem() and write_mem() functions. It was possible for an
illegitimate application to bypass these checks, and access /dev/mem
beyond the 1M limit by calling mmap_mem() instead. Also, the
parameters of range_is_allowed() were changed to cleanly handle
greater than 32-bits of physical address on 32-bit architectures.

* some of the newer Nehalem-based systems declare their CPU DSDT
entries as type 'Alias'. During boot, this caused an 'Error attaching
device data' message to be logged.

* the evtchn event channel device lacked locks and memory barriers.
This has led to xenstore becoming unresponsive on the Itanium(r)
architecture.

* sending of gratuitous ARP packets in the Xen frontend network driver
is now delayed until the backend signals that its carrier status has
been processed by the stack.

* on forcedeth devices, whenever setting ethtool parameters for link
speed, the device could stop receiving interrupts.

* the CIFS 'forcedirectio' option did not allow text to be appended to
files.

* the gettimeofday() function returned a backwards time on Intel(r) 64.

* residual-count corrections during UNDERRUN handling were added to
the qla2xxx driver.

* the fix for a small quirk was removed for certain Adaptec
controllers for which it caused problems.

* the 'xm trigger init' command caused a domain panic if a userland
application was running on a guest on the Intel(r) 64 architecture.

Users of kernel should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2006-5755"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-5907"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-2372"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-3276"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-3527"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-3833"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-4210"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-4302"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2008:0957"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(20, 189, 264, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-PAE");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-PAE-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/11/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/11/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
include("ksplice.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2008:0957");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2008:0957";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-PAE-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-PAE-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-debug-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-debug-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-debug-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-debug-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-debug-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-debug-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", reference:"kernel-doc-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"kernel-headers-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-headers-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-headers-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-kdump-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"kernel-kdump-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-xen-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-xen-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i686", reference:"kernel-xen-devel-2.6.18-92.1.18.el5")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kernel-xen-devel-2.6.18-92.1.18.el5")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-PAE / kernel-PAE-devel / kernel-debug / etc");
  }
}
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20081104_KERNEL_ON_SL5_X.NASL
    description - the Xen implementation did not prevent applications running in a para-virtualized guest from modifying CR4 TSC. This could cause a local denial of service. (CVE-2007-5907, Important) - Tavis Ormandy reported missing boundary checks in the Virtual Dynamic Shared Objects (vDSO) implementation. This could allow a local unprivileged user to cause a denial of service or escalate privileges. (CVE-2008-3527, Important) - the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local unprivileged user to obtain access to privileged information. (CVE-2008-4210, CVE-2008-3833, Important) - a flaw was found in the Linux kernel splice implementation. This could cause a local denial of service when there is a certain failure in the add_to_page_cache_lru() function. (CVE-2008-4302, Important) - a flaw was found in the Linux kernel when running on AMD64 systems. During a context switch, EFLAGS were being neither saved nor restored. This could allow a local unprivileged user to cause a denial of service. (CVE-2006-5755, Low) - a flaw was found in the Linux kernel virtual memory implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2372, Low) - an integer overflow was discovered in the Linux kernel Datagram Congestion Control Protocol (DCCP) implementation. This could allow a remote attacker to cause a denial of service. By default, remote DCCP is blocked by SELinux. (CVE-2008-3276, Low) In addition, these updated packages fix the following bugs : - random32() seeding has been improved. - in a multi-core environment, a race between the QP async event-handler and the destro_qp() function could occur. This led to unpredictable results during invalid memory access, which could lead to a kernel crash. - a format string was omitted in the call to the request_module() function. - a stack overflow caused by an infinite recursion bug in the binfmt_misc kernel module was corrected. - the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check for scatterlist usage before calling kmap_atomic(). - a sentinel NUL byte was added to the device_write() function to ensure that lspace.name is NUL-terminated. - in the character device driver, a range_is_allowed() check was added to the read_mem() and write_mem() functions. It was possible for an illegitimate application to bypass these checks, and access /dev/mem beyond the 1M limit by calling mmap_mem() instead. Also, the parameters of range_is_allowed() were changed to cleanly handle greater than 32-bits of physical address on 32-bit architectures. - some of the newer Nehalem-based systems declare their CPU DSDT entries as type
    last seen2020-06-01
    modified2020-06-02
    plugin id60488
    published2012-08-01
    reporterThis script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/60488
    titleScientific Linux Security Update : kernel on SL5.x i386/x86_64
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60488);
  script_version("1.7");
  script_cvs_date("Date: 2019/10/25 13:36:17");

  script_cve_id("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");

  script_name(english:"Scientific Linux Security Update : kernel on SL5.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - the Xen implementation did not prevent applications
    running in a para-virtualized guest from modifying CR4
    TSC. This could cause a local denial of service.
    (CVE-2007-5907, Important)

  - Tavis Ormandy reported missing boundary checks in the
    Virtual Dynamic Shared Objects (vDSO) implementation.
    This could allow a local unprivileged user to cause a
    denial of service or escalate privileges.
    (CVE-2008-3527, Important)

  - the do_truncate() and generic_file_splice_write()
    functions did not clear the setuid and setgid bits. This
    could allow a local unprivileged user to obtain access
    to privileged information. (CVE-2008-4210,
    CVE-2008-3833, Important)

  - a flaw was found in the Linux kernel splice
    implementation. This could cause a local denial of
    service when there is a certain failure in the
    add_to_page_cache_lru() function. (CVE-2008-4302,
    Important)

  - a flaw was found in the Linux kernel when running on
    AMD64 systems. During a context switch, EFLAGS were
    being neither saved nor restored. This could allow a
    local unprivileged user to cause a denial of service.
    (CVE-2006-5755, Low)

  - a flaw was found in the Linux kernel virtual memory
    implementation. This could allow a local unprivileged
    user to cause a denial of service. (CVE-2008-2372, Low)

  - an integer overflow was discovered in the Linux kernel
    Datagram Congestion Control Protocol (DCCP)
    implementation. This could allow a remote attacker to
    cause a denial of service. By default, remote DCCP is
    blocked by SELinux. (CVE-2008-3276, Low)

In addition, these updated packages fix the following bugs :

  - random32() seeding has been improved.

  - in a multi-core environment, a race between the QP async
    event-handler and the destro_qp() function could occur.
    This led to unpredictable results during invalid memory
    access, which could lead to a kernel crash.

  - a format string was omitted in the call to the
    request_module() function.

  - a stack overflow caused by an infinite recursion bug in
    the binfmt_misc kernel module was corrected.

  - the ata_scsi_rbuf_get() and ata_scsi_rbuf_put()
    functions now check for scatterlist usage before calling
    kmap_atomic().

  - a sentinel NUL byte was added to the device_write()
    function to ensure that lspace.name is NUL-terminated.

  - in the character device driver, a range_is_allowed()
    check was added to the read_mem() and write_mem()
    functions. It was possible for an illegitimate
    application to bypass these checks, and access /dev/mem
    beyond the 1M limit by calling mmap_mem() instead. Also,
    the parameters of range_is_allowed() were changed to
    cleanly handle greater than 32-bits of physical address
    on 32-bit architectures.

  - some of the newer Nehalem-based systems declare their
    CPU DSDT entries as type 'Alias'. During boot, this
    caused an 'Error attaching device data' message to be
    logged.

  - the evtchn event channel device lacked locks and memory
    barriers. This has led to xenstore becoming unresponsive
    on the Itanium&reg; architecture.

  - sending of gratuitous ARP packets in the Xen frontend
    network driver is now delayed until the backend signals
    that its carrier status has been processed by the stack.

  - on forcedeth devices, whenever setting ethtool
    parameters for link speed, the device could stop
    receiving interrupts.

  - the CIFS 'forcedirectio' option did not allow text to be
    appended to files.

  - the gettimeofday() function returned a backwards time on
    Intel&reg; 64.

  - residual-count corrections during UNDERRUN handling were
    added to the qla2xxx driver.

  - the fix for a small quirk was removed for certain
    Adaptec controllers for which it caused problems.

  - the 'xm trigger init' command caused a domain panic if a
    userland application was running on a guest on the
    Intel&reg; 64 architecture."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0811&L=scientific-linux-errata&T=0&P=435
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?fddd7885"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(20, 189, 264, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/11/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL5", reference:"kernel-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", cpu:"i386", reference:"kernel-PAE-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", cpu:"i386", reference:"kernel-PAE-devel-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-debug-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-debug-devel-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-devel-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-doc-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-headers-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-xen-2.6.18-92.1.17.el5")) flag++;
if (rpm_check(release:"SL5", reference:"kernel-xen-devel-2.6.18-92.1.17.el5")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2008-0957.NASL
    descriptionUpdated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. [Updated 12th November 2008] The original packages distributed with this errata had a bug which prevented the Xen kernel booting on older hardware. We have updated the packages to correct this bug. The kernel packages contain the Linux kernel, the core of any Linux operating system. * the Xen implementation did not prevent applications running in a para-virtualized guest from modifying CR4 TSC. This could cause a local denial of service. (CVE-2007-5907, Important) * Tavis Ormandy reported missing boundary checks in the Virtual Dynamic Shared Objects (vDSO) implementation. This could allow a local unprivileged user to cause a denial of service or escalate privileges. (CVE-2008-3527, Important) * the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local unprivileged user to obtain access to privileged information. (CVE-2008-4210, CVE-2008-3833, Important) * a flaw was found in the Linux kernel splice implementation. This could cause a local denial of service when there is a certain failure in the add_to_page_cache_lru() function. (CVE-2008-4302, Important) * a flaw was found in the Linux kernel when running on AMD64 systems. During a context switch, EFLAGS were being neither saved nor restored. This could allow a local unprivileged user to cause a denial of service. (CVE-2006-5755, Low) * a flaw was found in the Linux kernel virtual memory implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2372, Low) * an integer overflow was discovered in the Linux kernel Datagram Congestion Control Protocol (DCCP) implementation. This could allow a remote attacker to cause a denial of service. By default, remote DCCP is blocked by SELinux. (CVE-2008-3276, Low) In addition, these updated packages fix the following bugs : * random32() seeding has been improved. * in a multi-core environment, a race between the QP async event-handler and the destro_qp() function could occur. This led to unpredictable results during invalid memory access, which could lead to a kernel crash. * a format string was omitted in the call to the request_module() function. * a stack overflow caused by an infinite recursion bug in the binfmt_misc kernel module was corrected. * the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check for scatterlist usage before calling kmap_atomic(). * a sentinel NUL byte was added to the device_write() function to ensure that lspace.name is NUL-terminated. * in the character device driver, a range_is_allowed() check was added to the read_mem() and write_mem() functions. It was possible for an illegitimate application to bypass these checks, and access /dev/mem beyond the 1M limit by calling mmap_mem() instead. Also, the parameters of range_is_allowed() were changed to cleanly handle greater than 32-bits of physical address on 32-bit architectures. * some of the newer Nehalem-based systems declare their CPU DSDT entries as type
    last seen2020-06-01
    modified2020-06-02
    plugin id43713
    published2010-01-06
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/43713
    titleCentOS 5 : kernel (CESA-2008:0957)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2008:0957 and 
# CentOS Errata and Security Advisory 2008:0957 respectively.
#

include("compat.inc");

if (description)
{
  script_id(43713);
  script_version("1.17");
  script_cvs_date("Date: 2019/10/25 13:36:04");

  script_cve_id("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");
  script_bugtraq_id(31368);
  script_xref(name:"RHSA", value:"2008:0957");

  script_name(english:"CentOS 5 : kernel (CESA-2008:0957)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated kernel packages that resolve several security issues and fix
various bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

[Updated 12th November 2008] The original packages distributed with
this errata had a bug which prevented the Xen kernel booting on older
hardware. We have updated the packages to correct this bug.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

* the Xen implementation did not prevent applications running in a
para-virtualized guest from modifying CR4 TSC. This could cause a
local denial of service. (CVE-2007-5907, Important)

* Tavis Ormandy reported missing boundary checks in the Virtual
Dynamic Shared Objects (vDSO) implementation. This could allow a local
unprivileged user to cause a denial of service or escalate privileges.
(CVE-2008-3527, Important)

* the do_truncate() and generic_file_splice_write() functions did not
clear the setuid and setgid bits. This could allow a local
unprivileged user to obtain access to privileged information.
(CVE-2008-4210, CVE-2008-3833, Important)

* a flaw was found in the Linux kernel splice implementation. This
could cause a local denial of service when there is a certain failure
in the add_to_page_cache_lru() function. (CVE-2008-4302, Important)

* a flaw was found in the Linux kernel when running on AMD64 systems.
During a context switch, EFLAGS were being neither saved nor restored.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2006-5755, Low)

* a flaw was found in the Linux kernel virtual memory implementation.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2008-2372, Low)

* an integer overflow was discovered in the Linux kernel Datagram
Congestion Control Protocol (DCCP) implementation. This could allow a
remote attacker to cause a denial of service. By default, remote DCCP
is blocked by SELinux. (CVE-2008-3276, Low)

In addition, these updated packages fix the following bugs :

* random32() seeding has been improved.

* in a multi-core environment, a race between the QP async
event-handler and the destro_qp() function could occur. This led to
unpredictable results during invalid memory access, which could lead
to a kernel crash.

* a format string was omitted in the call to the request_module()
function.

* a stack overflow caused by an infinite recursion bug in the
binfmt_misc kernel module was corrected.

* the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check
for scatterlist usage before calling kmap_atomic().

* a sentinel NUL byte was added to the device_write() function to
ensure that lspace.name is NUL-terminated.

* in the character device driver, a range_is_allowed() check was added
to the read_mem() and write_mem() functions. It was possible for an
illegitimate application to bypass these checks, and access /dev/mem
beyond the 1M limit by calling mmap_mem() instead. Also, the
parameters of range_is_allowed() were changed to cleanly handle
greater than 32-bits of physical address on 32-bit architectures.

* some of the newer Nehalem-based systems declare their CPU DSDT
entries as type 'Alias'. During boot, this caused an 'Error attaching
device data' message to be logged.

* the evtchn event channel device lacked locks and memory barriers.
This has led to xenstore becoming unresponsive on the Itanium(r)
architecture.

* sending of gratuitous ARP packets in the Xen frontend network driver
is now delayed until the backend signals that its carrier status has
been processed by the stack.

* on forcedeth devices, whenever setting ethtool parameters for link
speed, the device could stop receiving interrupts.

* the CIFS 'forcedirectio' option did not allow text to be appended to
files.

* the gettimeofday() function returned a backwards time on Intel(r) 64.

* residual-count corrections during UNDERRUN handling were added to
the qla2xxx driver.

* the fix for a small quirk was removed for certain Adaptec
controllers for which it caused problems.

* the 'xm trigger init' command caused a domain panic if a userland
application was running on a guest on the Intel(r) 64 architecture.

Users of kernel should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2008-November/015397.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?744cf616"
  );
  # https://lists.centos.org/pipermail/centos-announce/2008-November/015398.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?b3f56c35"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(20, 189, 264, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-PAE");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-PAE-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/11/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-5", reference:"kernel-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", cpu:"i386", reference:"kernel-PAE-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", cpu:"i386", reference:"kernel-PAE-devel-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-debug-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-debug-devel-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-devel-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-doc-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-headers-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-xen-2.6.18-92.1.18.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"kernel-xen-devel-2.6.18-92.1.18.el5")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-PAE / kernel-PAE-devel / kernel-debug / etc");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_XEN-4764.NASL
    descriptionThis update fixes various Xen issues. Two security problems were fixed: CVE-2007-5906: Xen allowed virtual guest system users to cause a denial of service (hypervisor crash) by using a debug register (DR7) to set certain breakpoints. CVE-2007-5907: Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash). Also the following bugs were fixed: 279062: Timer ISR/1: Time went backwards 340379: Xen-3.04_13138-0.52 not working with FV File-Backed VMs
    last seen2020-06-01
    modified2020-06-02
    plugin id29891
    published2008-01-08
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29891
    titleopenSUSE 10 Security Update : xen (xen-4764)
    code
    #%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update xen-4764.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(29891);
  script_version ("1.10");
  script_cvs_date("Date: 2019/10/25 13:36:30");

  script_cve_id("CVE-2007-5906", "CVE-2007-5907");

  script_name(english:"openSUSE 10 Security Update : xen (xen-4764)");
  script_summary(english:"Check for the xen-4764 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update fixes various Xen issues.

Two security problems were fixed: CVE-2007-5906: Xen allowed virtual
guest system users to cause a denial of service (hypervisor crash) by
using a debug register (DR7) to set certain breakpoints.

CVE-2007-5907: Xen 3.1.1 does not prevent modification of the CR4 TSC
from applications, which allows pv guests to cause a denial of service
(crash).

Also the following bugs were fixed: 279062: Timer ISR/1: Time went
backwards 340379: Xen-3.04_13138-0.52 not working with FV File-Backed
VMs"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-pdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-ps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-ioemu");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:10.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/11/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/01/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE10\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "10.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE10.1", reference:"xen-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-devel-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-doc-html-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-doc-pdf-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-doc-ps-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-libs-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-tools-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", reference:"xen-tools-ioemu-3.0.4_13138-0.60") ) flag++;
if ( rpm_check(release:"SUSE10.1", cpu:"x86_64", reference:"xen-libs-32bit-3.0.4_13138-0.60") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-doc-html / xen-doc-pdf / xen-doc-ps / etc");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_XEN-4901.NASL
    descriptionThis update fixes Xen security issues. Two security problems were fixed: CVE-2007-5906: Xen allowed virtual guest system users to cause a denial of service (hypervisor crash) by using a debug register (DR7) to set certain breakpoints. CVE-2007-5907: Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).
    last seen2020-06-01
    modified2020-06-02
    plugin id29963
    published2008-01-14
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29963
    titleopenSUSE 10 Security Update : xen (xen-4901)
    code
    #%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update xen-4901.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(29963);
  script_version ("1.10");
  script_cvs_date("Date: 2019/10/25 13:36:33");

  script_cve_id("CVE-2007-5906", "CVE-2007-5907");

  script_name(english:"openSUSE 10 Security Update : xen (xen-4901)");
  script_summary(english:"Check for the xen-4901 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update fixes Xen security issues.

Two security problems were fixed: CVE-2007-5906: Xen allowed virtual
guest system users to cause a denial of service (hypervisor crash) by
using a debug register (DR7) to set certain breakpoints.

CVE-2007-5907: Xen 3.1.1 does not prevent modification of the CR4 TSC
from applications, which allows pv guests to cause a denial of service
(crash)."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-pdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-ps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-ioemu");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:10.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/01/14");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE10\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "10.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE10.2", reference:"xen-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-devel-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-doc-html-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-doc-pdf-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-doc-ps-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-libs-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-tools-3.0.3_11774-23") ) flag++;
if ( rpm_check(release:"SUSE10.2", reference:"xen-tools-ioemu-3.0.3_11774-23") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-doc-html / xen-doc-pdf / xen-doc-ps / etc");
}
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2008-0957.NASL
    descriptionFrom Red Hat Security Advisory 2008:0957 : Updated kernel packages that resolve several security issues and fix various bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. [Updated 12th November 2008] The original packages distributed with this errata had a bug which prevented the Xen kernel booting on older hardware. We have updated the packages to correct this bug. The kernel packages contain the Linux kernel, the core of any Linux operating system. * the Xen implementation did not prevent applications running in a para-virtualized guest from modifying CR4 TSC. This could cause a local denial of service. (CVE-2007-5907, Important) * Tavis Ormandy reported missing boundary checks in the Virtual Dynamic Shared Objects (vDSO) implementation. This could allow a local unprivileged user to cause a denial of service or escalate privileges. (CVE-2008-3527, Important) * the do_truncate() and generic_file_splice_write() functions did not clear the setuid and setgid bits. This could allow a local unprivileged user to obtain access to privileged information. (CVE-2008-4210, CVE-2008-3833, Important) * a flaw was found in the Linux kernel splice implementation. This could cause a local denial of service when there is a certain failure in the add_to_page_cache_lru() function. (CVE-2008-4302, Important) * a flaw was found in the Linux kernel when running on AMD64 systems. During a context switch, EFLAGS were being neither saved nor restored. This could allow a local unprivileged user to cause a denial of service. (CVE-2006-5755, Low) * a flaw was found in the Linux kernel virtual memory implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2372, Low) * an integer overflow was discovered in the Linux kernel Datagram Congestion Control Protocol (DCCP) implementation. This could allow a remote attacker to cause a denial of service. By default, remote DCCP is blocked by SELinux. (CVE-2008-3276, Low) In addition, these updated packages fix the following bugs : * random32() seeding has been improved. * in a multi-core environment, a race between the QP async event-handler and the destro_qp() function could occur. This led to unpredictable results during invalid memory access, which could lead to a kernel crash. * a format string was omitted in the call to the request_module() function. * a stack overflow caused by an infinite recursion bug in the binfmt_misc kernel module was corrected. * the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check for scatterlist usage before calling kmap_atomic(). * a sentinel NUL byte was added to the device_write() function to ensure that lspace.name is NUL-terminated. * in the character device driver, a range_is_allowed() check was added to the read_mem() and write_mem() functions. It was possible for an illegitimate application to bypass these checks, and access /dev/mem beyond the 1M limit by calling mmap_mem() instead. Also, the parameters of range_is_allowed() were changed to cleanly handle greater than 32-bits of physical address on 32-bit architectures. * some of the newer Nehalem-based systems declare their CPU DSDT entries as type
    last seen2020-06-01
    modified2020-06-02
    plugin id67758
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/67758
    titleOracle Linux 5 : kernel (ELSA-2008-0957)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2008:0957 and 
# Oracle Linux Security Advisory ELSA-2008-0957 respectively.
#

include("compat.inc");

if (description)
{
  script_id(67758);
  script_version("1.16");
  script_cvs_date("Date: 2019/10/25 13:36:07");

  script_cve_id("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");
  script_bugtraq_id(31368);
  script_xref(name:"RHSA", value:"2008:0957");

  script_name(english:"Oracle Linux 5 : kernel (ELSA-2008-0957)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2008:0957 :

Updated kernel packages that resolve several security issues and fix
various bugs are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

[Updated 12th November 2008] The original packages distributed with
this errata had a bug which prevented the Xen kernel booting on older
hardware. We have updated the packages to correct this bug.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

* the Xen implementation did not prevent applications running in a
para-virtualized guest from modifying CR4 TSC. This could cause a
local denial of service. (CVE-2007-5907, Important)

* Tavis Ormandy reported missing boundary checks in the Virtual
Dynamic Shared Objects (vDSO) implementation. This could allow a local
unprivileged user to cause a denial of service or escalate privileges.
(CVE-2008-3527, Important)

* the do_truncate() and generic_file_splice_write() functions did not
clear the setuid and setgid bits. This could allow a local
unprivileged user to obtain access to privileged information.
(CVE-2008-4210, CVE-2008-3833, Important)

* a flaw was found in the Linux kernel splice implementation. This
could cause a local denial of service when there is a certain failure
in the add_to_page_cache_lru() function. (CVE-2008-4302, Important)

* a flaw was found in the Linux kernel when running on AMD64 systems.
During a context switch, EFLAGS were being neither saved nor restored.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2006-5755, Low)

* a flaw was found in the Linux kernel virtual memory implementation.
This could allow a local unprivileged user to cause a denial of
service. (CVE-2008-2372, Low)

* an integer overflow was discovered in the Linux kernel Datagram
Congestion Control Protocol (DCCP) implementation. This could allow a
remote attacker to cause a denial of service. By default, remote DCCP
is blocked by SELinux. (CVE-2008-3276, Low)

In addition, these updated packages fix the following bugs :

* random32() seeding has been improved.

* in a multi-core environment, a race between the QP async
event-handler and the destro_qp() function could occur. This led to
unpredictable results during invalid memory access, which could lead
to a kernel crash.

* a format string was omitted in the call to the request_module()
function.

* a stack overflow caused by an infinite recursion bug in the
binfmt_misc kernel module was corrected.

* the ata_scsi_rbuf_get() and ata_scsi_rbuf_put() functions now check
for scatterlist usage before calling kmap_atomic().

* a sentinel NUL byte was added to the device_write() function to
ensure that lspace.name is NUL-terminated.

* in the character device driver, a range_is_allowed() check was added
to the read_mem() and write_mem() functions. It was possible for an
illegitimate application to bypass these checks, and access /dev/mem
beyond the 1M limit by calling mmap_mem() instead. Also, the
parameters of range_is_allowed() were changed to cleanly handle
greater than 32-bits of physical address on 32-bit architectures.

* some of the newer Nehalem-based systems declare their CPU DSDT
entries as type 'Alias'. During boot, this caused an 'Error attaching
device data' message to be logged.

* the evtchn event channel device lacked locks and memory barriers.
This has led to xenstore becoming unresponsive on the Itanium(r)
architecture.

* sending of gratuitous ARP packets in the Xen frontend network driver
is now delayed until the backend signals that its carrier status has
been processed by the stack.

* on forcedeth devices, whenever setting ethtool parameters for link
speed, the device could stop receiving interrupts.

* the CIFS 'forcedirectio' option did not allow text to be appended to
files.

* the gettimeofday() function returned a backwards time on Intel(r) 64.

* residual-count corrections during UNDERRUN handling were added to
the qla2xxx driver.

* the fix for a small quirk was removed for certain Adaptec
controllers for which it caused problems.

* the 'xm trigger init' command caused a domain panic if a userland
application was running on a guest on the Intel(r) 64 architecture.

Users of kernel should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2008-November/000785.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(20, 189, 264, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-PAE");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-PAE-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/11/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
include("ksplice.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2006-5755", "CVE-2007-5907", "CVE-2008-2372", "CVE-2008-3276", "CVE-2008-3527", "CVE-2008-3833", "CVE-2008-4210", "CVE-2008-4302");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2008-0957");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "2.6";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL5", rpm:"kernel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-PAE-2.6.18") && rpm_check(release:"EL5", cpu:"i386", reference:"kernel-PAE-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-PAE-devel-2.6.18") && rpm_check(release:"EL5", cpu:"i386", reference:"kernel-PAE-devel-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-debug-2.6.18") && rpm_check(release:"EL5", reference:"kernel-debug-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-debug-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-debug-devel-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-devel-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-doc-2.6.18") && rpm_check(release:"EL5", reference:"kernel-doc-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-headers-2.6.18") && rpm_check(release:"EL5", reference:"kernel-headers-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-xen-2.6.18") && rpm_check(release:"EL5", reference:"kernel-xen-2.6.18-92.1.17.0.1.el5")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-xen-devel-2.6.18") && rpm_check(release:"EL5", reference:"kernel-xen-devel-2.6.18-92.1.17.0.1.el5")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_XEN-4854.NASL
    descriptionThis update fixes various Xen issues. Two security problems were fixed: CVE-2007-5906: Xen allowed virtual guest system users to cause a denial of service (hypervisor crash) by using a debug register (DR7) to set certain breakpoints. CVE-2007-5907: Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash). Also the following bugs were fixed: 279062: Timer ISR/1: Time went backwards 286859: Fix booting from SAN 310279: Kernel Panic while booting Xen 338486: xen fails to start when option
    last seen2020-06-01
    modified2020-06-02
    plugin id29792
    published2007-12-24
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29792
    titleopenSUSE 10 Security Update : xen (xen-4854)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_XEN-4766.NASL
    descriptionThis update fixes various Xen issues. Two security problems were fixed: CVE-2007-5906: Xen allowed virtual guest system users to cause a denial of service (hypervisor crash) by using a debug register (DR7) to set certain breakpoints. - Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash). (CVE-2007-5907) Also the following bugs were fixed: 279062: Timer ISR/1: Time went backwards 340379: Xen-3.04_13138-0.52 not working with FV File-Backed VMs
    last seen2020-06-01
    modified2020-06-02
    plugin id29791
    published2007-12-24
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29791
    titleSuSE 10 Security Update : xen (ZYPP Patch Number 4766)

Oval

accepted2013-04-29T04:05:10.323-04:00
classvulnerability
contributors
  • nameAharon Chernin
    organizationSCAP.com, LLC
  • nameDragos Prisaca
    organizationG2, Inc.
definition_extensions
  • commentThe operating system installed on the system is Red Hat Enterprise Linux 5
    ovaloval:org.mitre.oval:def:11414
  • commentThe operating system installed on the system is CentOS Linux 5.x
    ovaloval:org.mitre.oval:def:15802
  • commentOracle Linux 5.x
    ovaloval:org.mitre.oval:def:15459
descriptionXen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).
familyunix
idoval:org.mitre.oval:def:10380
statusaccepted
submitted2010-07-09T03:56:16-04:00
titleXen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).
version18

Redhat

advisories
rhsa
idRHSA-2008:0957
rpms
  • kernel-0:2.6.18-92.1.18.el5
  • kernel-PAE-0:2.6.18-92.1.18.el5
  • kernel-PAE-debuginfo-0:2.6.18-92.1.18.el5
  • kernel-PAE-devel-0:2.6.18-92.1.18.el5
  • kernel-debug-0:2.6.18-92.1.18.el5
  • kernel-debug-debuginfo-0:2.6.18-92.1.18.el5
  • kernel-debug-devel-0:2.6.18-92.1.18.el5
  • kernel-debuginfo-0:2.6.18-92.1.18.el5
  • kernel-debuginfo-common-0:2.6.18-92.1.18.el5
  • kernel-devel-0:2.6.18-92.1.18.el5
  • kernel-doc-0:2.6.18-92.1.18.el5
  • kernel-headers-0:2.6.18-92.1.18.el5
  • kernel-kdump-0:2.6.18-92.1.18.el5
  • kernel-kdump-debuginfo-0:2.6.18-92.1.18.el5
  • kernel-kdump-devel-0:2.6.18-92.1.18.el5
  • kernel-xen-0:2.6.18-92.1.18.el5
  • kernel-xen-debuginfo-0:2.6.18-92.1.18.el5
  • kernel-xen-devel-0:2.6.18-92.1.18.el5

References