Vulnerabilities > CVE-2010-0419 - Permissions, Privileges, and Access Controls vulnerability in KVM Qumranet KVM 83

047910
CVSS 4.4 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
kvm-qumranet
CWE-264
nessus
NVD
Published: 2010-03-05
Updated: 2017-09-19

Summary

The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict writing of segment selectors to segment registers, which might allow guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch.

Vulnerable Configurations

Part Description Count
Application
Kvm_Qumranet
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-2010-0126.NASL
    descriptionUpdated kvm packages that fix two security issues and two 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. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel. A flaw was found in the way the x86 emulator loaded segment selectors (used for memory segmentation and protection) into segment registers. In some guest system configurations, an unprivileged guest user could leverage this flaw to crash the guest or possibly escalate their privileges within the guest. (CVE-2010-0419) The x86 emulator implementation was missing a check for the Current Privilege Level (CPL) while accessing debug registers. An unprivileged user in a guest could leverage this flaw to crash the guest. (CVE-2009-3722) This update also fixes the following bugs : With Red Hat Enterprise Virtualization, the virtio_blk_dma_restart_bh() function was previously used to handle write errors; however, a bug fix provided by the RHSA-2009:1659 update meant that read errors would also have to be handled by this function. The function was not updated for this, causing read errors to be resubmitted as writes. This caused guest image corruption in some cases. Additionally, the return values of the bdrv_aio_write() and bdrv_aio_read() functions were ignored. If an immediate failure occurred in one of these functions, errors would be missed and the guest could hang or read corrupted data. (BZ#562776) All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update will take effect.
    last seen2020-06-01
    modified2020-06-02
    plugin id63920
    published2013-01-24
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/63920
    titleRHEL 5 : kvm (RHSA-2010:0126)
    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-2010:0126. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(63920);
  script_version("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:14");

  script_cve_id("CVE-2009-3722", "CVE-2010-0419");
  script_bugtraq_id(37221);
  script_xref(name:"RHSA", value:"2010:0126");

  script_name(english:"RHEL 5 : kvm (RHSA-2010:0126)");
  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 kvm packages that fix two security issues and two 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module
built for the standard Red Hat Enterprise Linux kernel.

A flaw was found in the way the x86 emulator loaded segment selectors
(used for memory segmentation and protection) into segment registers.
In some guest system configurations, an unprivileged guest user could
leverage this flaw to crash the guest or possibly escalate their
privileges within the guest. (CVE-2010-0419)

The x86 emulator implementation was missing a check for the Current
Privilege Level (CPL) while accessing debug registers. An unprivileged
user in a guest could leverage this flaw to crash the guest.
(CVE-2009-3722)

This update also fixes the following bugs :

With Red Hat Enterprise Virtualization, the
virtio_blk_dma_restart_bh() function was previously used to handle
write errors; however, a bug fix provided by the RHSA-2009:1659 update
meant that read errors would also have to be handled by this function.
The function was not updated for this, causing read errors to be
resubmitted as writes. This caused guest image corruption in some
cases.

Additionally, the return values of the bdrv_aio_write() and
bdrv_aio_read() functions were ignored. If an immediate failure
occurred in one of these functions, errors would be missed and the
guest could hang or read corrupted data. (BZ#562776)

All KVM users should upgrade to these updated packages, which contain
backported patches to resolve these issues. Note: The procedure in the
Solution section must be performed before this update will take
effect."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2009-3722"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2010-0419"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2010:0126"
  );
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kmod-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm-qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/10/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/24");
  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:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.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");

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 ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2010:0126";
  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:"x86_64", reference:"kmod-kvm-83-105.el5_4.27")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-83-105.el5_4.27")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-qemu-img-83-105.el5_4.27")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-tools-83-105.el5_4.27")) 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, "kmod-kvm / kvm / kvm-qemu-img / kvm-tools");
  }
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-947-2.NASL
    descriptionUSN-947-1 fixed vulnerabilities in the Linux kernel. Fixes for CVE-2010-0419 caused failures when using KVM in certain situations. This update reverts that fix until a better solution can be found. We apologize for the inconvenience. It was discovered that the Linux kernel did not correctly handle memory protection of the Virtual Dynamic Shared Object page when running a 32-bit application on a 64-bit kernel. A local attacker could exploit this to cause a denial of service. (Only affected Ubuntu 6.06 LTS.) (CVE-2009-4271) It was discovered that the r8169 network driver did not correctly check the size of Ethernet frames. A remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2009-4537) Wei Yongjun discovered that SCTP did not correctly validate certain chunks. A remote attacker could send specially crafted traffic to monopolize CPU resources, leading to a denial of service. (Only affected Ubuntu 6.06 LTS.) (CVE-2010-0008) It was discovered that KVM did not correctly limit certain privileged IO accesses on x86. Processes in the guest OS with access to IO regions could gain further privileges within the guest OS. (Did not affect Ubuntu 6.06 LTS.) (CVE-2010-0298, CVE-2010-0306, CVE-2010-0419) Evgeniy Polyakov discovered that IPv6 did not correctly handle certain TUN packets. A remote attacker could exploit this to crash the system, leading to a denial of service. (Only affected Ubuntu 8.04 LTS.) (CVE-2010-0437) Sachin Prabhu discovered that GFS2 did not correctly handle certain locks. A local attacker with write access to a GFS2 filesystem could exploit this to crash the system, leading to a denial of service. (CVE-2010-0727) Jamie Strandboge discovered that network virtio in KVM did not correctly handle certain high-traffic conditions. A remote attacker could exploit this by sending specially crafted traffic to a guest OS, causing the guest to crash, leading to a denial of service. (Only affected Ubuntu 8.04 LTS.) (CVE-2010-0741) Marcus Meissner discovered that the USB subsystem did not correctly handle certain error conditions. A local attacker with access to a USB device could exploit this to read recently used kernel memory, leading to a loss of privacy and potentially root privilege escalation. (CVE-2010-1083) Neil Brown discovered that the Bluetooth subsystem did not correctly handle large amounts of traffic. A physically proximate remote attacker could exploit this by sending specially crafted traffic that would consume all available system memory, leading to a denial of service. (Ubuntu 6.06 LTS and 10.04 LTS were not affected.) (CVE-2010-1084) Jody Bruchon discovered that the sound driver for the AMD780V did not correctly handle certain conditions. A local attacker with access to this hardward could exploit the flaw to cause a system crash, leading to a denial of service. (CVE-2010-1085) Ang Way Chuang discovered that the DVB driver did not correctly handle certain MPEG2-TS frames. An attacker could exploit this by delivering specially crafted frames to monopolize CPU resources, leading to a denial of service. (Ubuntu 10.04 LTS was not affected.) (CVE-2010-1086) Trond Myklebust discovered that NFS did not correctly handle truncation under certain conditions. A local attacker with write access to an NFS share could exploit this to crash the system, leading to a denial of service. (Ubuntu 10.04 LTS was not affected.) (CVE-2010-1087) Al Viro discovered that automount of NFS did not correctly handle symlinks under certain conditions. A local attacker could exploit this to crash the system, leading to a denial of service. (Ubuntu 6.06 LTS and Ubuntu 10.04 LTS were not affected.) (CVE-2010-1088) Matt McCutchen discovered that ReiserFS did not correctly protect xattr files in the .reiserfs_priv directory. A local attacker could exploit this to gain root privileges or crash the system, leading to a denial of service. (CVE-2010-1146) Eugene Teo discovered that CIFS did not correctly validate arguments when creating new files. A local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges if mmap_min_addr was not set. (CVE-2010-1148) Catalin Marinas and Tetsuo Handa discovered that the TTY layer did not correctly release process IDs. A local attacker could exploit this to consume kernel resources, leading to a denial of service. (CVE-2010-1162) Neil Horman discovered that TIPC did not correctly check its internal state. A local attacker could send specially crafted packets via AF_TIPC that would cause the system to crash, leading to a denial of service. (Ubuntu 6.06 LTS was not affected.) (CVE-2010-1187) Masayuki Nakagawa discovered that IPv6 did not correctly handle certain settings when listening. If a socket were listening with the IPV6_RECVPKTINFO flag, a remote attacker could send specially crafted traffic that would cause the system to crash, leading to a denial of service. (Only Ubuntu 6.06 LTS was affected.) (CVE-2010-1188) Oleg Nesterov discovered that the Out-Of-Memory handler did not correctly handle certain arrangements of processes. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-1488). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id46811
    published2010-06-04
    reporterUbuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/46811
    titleUbuntu 10.04 LTS : linux regression (USN-947-2)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-947-2. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(46811);
  script_version("1.19");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2009-4271", "CVE-2009-4537", "CVE-2010-0008", "CVE-2010-0298", "CVE-2010-0306", "CVE-2010-0419", "CVE-2010-0437", "CVE-2010-0727", "CVE-2010-0741", "CVE-2010-1083", "CVE-2010-1084", "CVE-2010-1085", "CVE-2010-1086", "CVE-2010-1087", "CVE-2010-1088", "CVE-2010-1146", "CVE-2010-1148", "CVE-2010-1162", "CVE-2010-1187", "CVE-2010-1188", "CVE-2010-1488");
  script_xref(name:"USN", value:"947-2");

  script_name(english:"Ubuntu 10.04 LTS : linux regression (USN-947-2)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"USN-947-1 fixed vulnerabilities in the Linux kernel. Fixes for
CVE-2010-0419 caused failures when using KVM in certain situations.
This update reverts that fix until a better solution can be found.

We apologize for the inconvenience.

It was discovered that the Linux kernel did not correctly handle
memory protection of the Virtual Dynamic Shared Object page when
running a 32-bit application on a 64-bit kernel. A local attacker
could exploit this to cause a denial of service. (Only affected Ubuntu
6.06 LTS.) (CVE-2009-4271)

It was discovered that the r8169 network driver did not
correctly check the size of Ethernet frames. A remote
attacker could send specially crafted traffic to crash the
system, leading to a denial of service. (CVE-2009-4537)

Wei Yongjun discovered that SCTP did not correctly validate
certain chunks. A remote attacker could send specially
crafted traffic to monopolize CPU resources, leading to a
denial of service. (Only affected Ubuntu 6.06 LTS.)
(CVE-2010-0008)

It was discovered that KVM did not correctly limit certain
privileged IO accesses on x86. Processes in the guest OS
with access to IO regions could gain further privileges
within the guest OS. (Did not affect Ubuntu 6.06 LTS.)
(CVE-2010-0298, CVE-2010-0306, CVE-2010-0419)

Evgeniy Polyakov discovered that IPv6 did not correctly
handle certain TUN packets. A remote attacker could exploit
this to crash the system, leading to a denial of service.
(Only affected Ubuntu 8.04 LTS.) (CVE-2010-0437)

Sachin Prabhu discovered that GFS2 did not correctly handle
certain locks. A local attacker with write access to a GFS2
filesystem could exploit this to crash the system, leading
to a denial of service. (CVE-2010-0727)

Jamie Strandboge discovered that network virtio in KVM did
not correctly handle certain high-traffic conditions. A
remote attacker could exploit this by sending specially
crafted traffic to a guest OS, causing the guest to crash,
leading to a denial of service. (Only affected Ubuntu 8.04
LTS.) (CVE-2010-0741)

Marcus Meissner discovered that the USB subsystem did not
correctly handle certain error conditions. A local attacker
with access to a USB device could exploit this to read
recently used kernel memory, leading to a loss of privacy
and potentially root privilege escalation. (CVE-2010-1083)

Neil Brown discovered that the Bluetooth subsystem did not
correctly handle large amounts of traffic. A physically
proximate remote attacker could exploit this by sending
specially crafted traffic that would consume all available
system memory, leading to a denial of service. (Ubuntu 6.06
LTS and 10.04 LTS were not affected.) (CVE-2010-1084)

Jody Bruchon discovered that the sound driver for the
AMD780V did not correctly handle certain conditions. A local
attacker with access to this hardward could exploit the flaw
to cause a system crash, leading to a denial of service.
(CVE-2010-1085)

Ang Way Chuang discovered that the DVB driver did not
correctly handle certain MPEG2-TS frames. An attacker could
exploit this by delivering specially crafted frames to
monopolize CPU resources, leading to a denial of service.
(Ubuntu 10.04 LTS was not affected.) (CVE-2010-1086)

Trond Myklebust discovered that NFS did not correctly handle
truncation under certain conditions. A local attacker with
write access to an NFS share could exploit this to crash the
system, leading to a denial of service. (Ubuntu 10.04 LTS
was not affected.) (CVE-2010-1087)

Al Viro discovered that automount of NFS did not correctly
handle symlinks under certain conditions. A local attacker
could exploit this to crash the system, leading to a denial
of service. (Ubuntu 6.06 LTS and Ubuntu 10.04 LTS were not
affected.) (CVE-2010-1088)

Matt McCutchen discovered that ReiserFS did not correctly
protect xattr files in the .reiserfs_priv directory. A local
attacker could exploit this to gain root privileges or crash
the system, leading to a denial of service. (CVE-2010-1146)

Eugene Teo discovered that CIFS did not correctly validate
arguments when creating new files. A local attacker could
exploit this to crash the system, leading to a denial of
service, or possibly gain root privileges if mmap_min_addr
was not set. (CVE-2010-1148)

Catalin Marinas and Tetsuo Handa discovered that the TTY
layer did not correctly release process IDs. A local
attacker could exploit this to consume kernel resources,
leading to a denial of service. (CVE-2010-1162)

Neil Horman discovered that TIPC did not correctly check its
internal state. A local attacker could send specially
crafted packets via AF_TIPC that would cause the system to
crash, leading to a denial of service. (Ubuntu 6.06 LTS was
not affected.) (CVE-2010-1187)

Masayuki Nakagawa discovered that IPv6 did not correctly
handle certain settings when listening. If a socket were
listening with the IPV6_RECVPKTINFO flag, a remote attacker
could send specially crafted traffic that would cause the
system to crash, leading to a denial of service. (Only
Ubuntu 6.06 LTS was affected.) (CVE-2010-1188)

Oleg Nesterov discovered that the Out-Of-Memory handler did
not correctly handle certain arrangements of processes. A
local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2010-1488).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/947-2/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(20, 264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6-386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6-generic-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6-preempt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-headers-2.6-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-generic-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-lpia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-preempt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-virtual");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-libc-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-source-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-tools-2.6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-tools-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/01/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/06/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("ksplice.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2009-4271", "CVE-2009-4537", "CVE-2010-0008", "CVE-2010-0298", "CVE-2010-0306", "CVE-2010-0419", "CVE-2010-0437", "CVE-2010-0727", "CVE-2010-0741", "CVE-2010-1083", "CVE-2010-1084", "CVE-2010-1085", "CVE-2010-1086", "CVE-2010-1087", "CVE-2010-1088", "CVE-2010-1146", "CVE-2010-1148", "CVE-2010-1162", "CVE-2010-1187", "CVE-2010-1188", "CVE-2010-1488");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-947-2");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"linux-doc", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22-386", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22-generic", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22-generic-pae", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22-preempt", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-headers-2.6.32-22-server", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-386", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-generic", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-generic-pae", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-lpia", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-preempt", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-server", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-22-virtual", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-libc-dev", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-source-2.6.32", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-tools-2.6.32-22", pkgver:"2.6.32-22.36")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"linux-tools-common", pkgver:"2.6.32-22.36")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-doc / linux-headers-2.6 / linux-headers-2.6-386 / etc");
}
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2010-0126.NASL
    descriptionUpdated kvm packages that fix two security issues and two 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. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel. A flaw was found in the way the x86 emulator loaded segment selectors (used for memory segmentation and protection) into segment registers. In some guest system configurations, an unprivileged guest user could leverage this flaw to crash the guest or possibly escalate their privileges within the guest. (CVE-2010-0419) The x86 emulator implementation was missing a check for the Current Privilege Level (CPL) while accessing debug registers. An unprivileged user in a guest could leverage this flaw to crash the guest. (CVE-2009-3722) This update also fixes the following bugs : With Red Hat Enterprise Virtualization, the virtio_blk_dma_restart_bh() function was previously used to handle write errors; however, a bug fix provided by the RHSA-2009:1659 update meant that read errors would also have to be handled by this function. The function was not updated for this, causing read errors to be resubmitted as writes. This caused guest image corruption in some cases. Additionally, the return values of the bdrv_aio_write() and bdrv_aio_read() functions were ignored. If an immediate failure occurred in one of these functions, errors would be missed and the guest could hang or read corrupted data. (BZ#562776) All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update will take effect.
    last seen2020-06-01
    modified2020-06-02
    plugin id44969
    published2010-03-04
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/44969
    titleCentOS 5 : kvm (CESA-2010:0126)
    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-2010:0126 and 
# CentOS Errata and Security Advisory 2010:0126 respectively.
#

include("compat.inc");

if (description)
{
  script_id(44969);
  script_version("1.15");
  script_cvs_date("Date: 2019/10/25 13:36:05");

  script_cve_id("CVE-2009-3722", "CVE-2010-0419");
  script_bugtraq_id(37221);
  script_xref(name:"RHSA", value:"2010:0126");

  script_name(english:"CentOS 5 : kvm (CESA-2010:0126)");
  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 kvm packages that fix two security issues and two 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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module
built for the standard Red Hat Enterprise Linux kernel.

A flaw was found in the way the x86 emulator loaded segment selectors
(used for memory segmentation and protection) into segment registers.
In some guest system configurations, an unprivileged guest user could
leverage this flaw to crash the guest or possibly escalate their
privileges within the guest. (CVE-2010-0419)

The x86 emulator implementation was missing a check for the Current
Privilege Level (CPL) while accessing debug registers. An unprivileged
user in a guest could leverage this flaw to crash the guest.
(CVE-2009-3722)

This update also fixes the following bugs :

With Red Hat Enterprise Virtualization, the
virtio_blk_dma_restart_bh() function was previously used to handle
write errors; however, a bug fix provided by the RHSA-2009:1659 update
meant that read errors would also have to be handled by this function.
The function was not updated for this, causing read errors to be
resubmitted as writes. This caused guest image corruption in some
cases.

Additionally, the return values of the bdrv_aio_write() and
bdrv_aio_read() functions were ignored. If an immediate failure
occurred in one of these functions, errors would be missed and the
guest could hang or read corrupted data. (BZ#562776)

All KVM users should upgrade to these updated packages, which contain
backported patches to resolve these issues. Note: The procedure in the
Solution section must be performed before this update will take
effect."
  );
  # https://lists.centos.org/pipermail/centos-announce/2010-March/016539.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?84fbb21b"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected kvm 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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kmod-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kvm-qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kvm-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/10/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 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", cpu:"x86_64", reference:"kmod-kvm-83-105.el5_4.27")) flag++;
if (rpm_check(release:"CentOS-5", cpu:"x86_64", reference:"kvm-83-105.el5_4.27")) flag++;
if (rpm_check(release:"CentOS-5", cpu:"x86_64", reference:"kvm-qemu-img-83-105.el5_4.27")) flag++;
if (rpm_check(release:"CentOS-5", cpu:"x86_64", reference:"kvm-tools-83-105.el5_4.27")) 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, "kmod-kvm / kvm / kvm-qemu-img / kvm-tools");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2010.NASL
    descriptionSeveral local vulnerabilities have been discovered in kvm, a full virtualization system. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2010-0298 CVE-2010-0306 Gleb Natapov discovered issues in the KVM subsystem where missing permission checks (CPL/IOPL) permit a user in a guest system to denial of service a guest (system crash) or gain escalated privileges with the guest. - CVE-2010-0309 Marcelo Tosatti fixed an issue in the PIT emulation code in the KVM subsystem that allows privileged users in a guest domain to cause a denial of service (crash) of the host system. - CVE-2010-0419 Paolo Bonzini found a bug in KVM that can be used to bypass proper permission checking while loading segment selectors. This potentially allows privileged guest users to execute privileged instructions on the host system.
    last seen2020-06-01
    modified2020-06-02
    plugin id45026
    published2010-03-11
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/45026
    titleDebian DSA-2010-1 : kvm - privilege escalation/denial of service
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2010. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(45026);
  script_version("1.20");
  script_cvs_date("Date: 2019/08/02 13:32:22");

  script_cve_id("CVE-2010-0298", "CVE-2010-0306", "CVE-2010-0309", "CVE-2010-0419");
  script_xref(name:"DSA", value:"2010");

  script_name(english:"Debian DSA-2010-1 : kvm - privilege escalation/denial of service");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several local vulnerabilities have been discovered in kvm, a full
virtualization system. The Common Vulnerabilities and Exposures
project identifies the following problems :

  - CVE-2010-0298 CVE-2010-0306
    Gleb Natapov discovered issues in the KVM subsystem
    where missing permission checks (CPL/IOPL) permit a user
    in a guest system to denial of service a guest (system
    crash) or gain escalated privileges with the guest.

  - CVE-2010-0309
    Marcelo Tosatti fixed an issue in the PIT emulation code
    in the KVM subsystem that allows privileged users in a
    guest domain to cause a denial of service (crash) of the
    host system.

  - CVE-2010-0419
    Paolo Bonzini found a bug in KVM that can be used to
    bypass proper permission checking while loading segment
    selectors. This potentially allows privileged guest
    users to execute privileged instructions on the host
    system."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-0298"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-0306"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-0309"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-0419"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2010/dsa-2010"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the kvm package.

For the stable distribution (lenny), this problem has been fixed in
version 72+dfsg-5~lenny5."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_cwe_id(16, 264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kvm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/11");
  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:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"5.0", prefix:"kvm", reference:"72+dfsg-5~lenny5")) flag++;
if (deb_check(release:"5.0", prefix:"kvm-source", reference:"72+dfsg-5~lenny5")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20100301_KVM_ON_SL5_4.NASL
    descriptionCVE-2009-3722 KVM: Check cpl before emulating debug register access CVE-2010-0419 kvm: emulator privilege escalation segment selector check A flaw was found in the way the x86 emulator loaded segment selectors (used for memory segmentation and protection) into segment registers. In some guest system configurations, an unprivileged guest user could leverage this flaw to crash the guest or possibly escalate their privileges within the guest. (CVE-2010-0419) The x86 emulator implementation was missing a check for the Current Privilege Level (CPL) while accessing debug registers. An unprivileged user in a guest could leverage this flaw to crash the guest. (CVE-2009-3722) This update also fixes the following bugs : The return values of the bdrv_aio_write() and bdrv_aio_read() functions were ignored. If an immediate failure occurred in one of these functions, errors would be missed and the guest could hang or read corrupted data. (BZ#562776) The following procedure must be performed before this update will take effect : 1) Stop all KVM guest virtual machines. 2) Either reboot the hypervisor machine or, as the root user, remove (using
    last seen2020-06-01
    modified2020-06-02
    plugin id60740
    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/60740
    titleScientific Linux Security Update : kvm on SL5.4 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(60740);
  script_version("1.7");
  script_cvs_date("Date: 2019/10/25 13:36:18");

  script_cve_id("CVE-2009-3722", "CVE-2010-0419");

  script_name(english:"Scientific Linux Security Update : kvm on SL5.4 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:
"CVE-2009-3722 KVM: Check cpl before emulating debug register access

CVE-2010-0419 kvm: emulator privilege escalation segment selector
check

A flaw was found in the way the x86 emulator loaded segment selectors
(used for memory segmentation and protection) into segment registers.
In some guest system configurations, an unprivileged guest user could
leverage this flaw to crash the guest or possibly escalate their
privileges within the guest. (CVE-2010-0419)

The x86 emulator implementation was missing a check for the Current
Privilege Level (CPL) while accessing debug registers. An unprivileged
user in a guest could leverage this flaw to crash the guest.
(CVE-2009-3722)

This update also fixes the following bugs :

The return values of the bdrv_aio_write() and bdrv_aio_read()
functions were ignored. If an immediate failure occurred in one of
these functions, errors would be missed and the guest could hang or
read corrupted data. (BZ#562776)

The following procedure must be performed before this update will take
effect :

1) Stop all KVM guest virtual machines.

2) Either reboot the hypervisor machine or, as the root user, remove
(using 'modprobe -r [module]') and reload (using 'modprobe [module]')
all of the following modules which are currently running (determined
using 'lsmod'): kvm, ksm, kvm-intel or kvm-amd.

3) Restart the KVM guest virtual machines."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=562776"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1003&L=scientific-linux-errata&T=0&P=199
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5c393866"
  );
  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_cwe_id(264);

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

  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  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", cpu:"x86_64", reference:"kmod-kvm-83-105.el5_4.27")) flag++;
if (rpm_check(release:"SL5", cpu:"x86_64", reference:"kvm-83-105.el5_4.27")) flag++;
if (rpm_check(release:"SL5", cpu:"x86_64", reference:"kvm-qemu-img-83-105.el5_4.27")) flag++;
if (rpm_check(release:"SL5", cpu:"x86_64", reference:"kvm-tools-83-105.el5_4.27")) 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 familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2010-0126.NASL
    descriptionFrom Red Hat Security Advisory 2010:0126 : Updated kvm packages that fix two security issues and two 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. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel. A flaw was found in the way the x86 emulator loaded segment selectors (used for memory segmentation and protection) into segment registers. In some guest system configurations, an unprivileged guest user could leverage this flaw to crash the guest or possibly escalate their privileges within the guest. (CVE-2010-0419) The x86 emulator implementation was missing a check for the Current Privilege Level (CPL) while accessing debug registers. An unprivileged user in a guest could leverage this flaw to crash the guest. (CVE-2009-3722) This update also fixes the following bugs : With Red Hat Enterprise Virtualization, the virtio_blk_dma_restart_bh() function was previously used to handle write errors; however, a bug fix provided by the RHSA-2009:1659 update meant that read errors would also have to be handled by this function. The function was not updated for this, causing read errors to be resubmitted as writes. This caused guest image corruption in some cases. Additionally, the return values of the bdrv_aio_write() and bdrv_aio_read() functions were ignored. If an immediate failure occurred in one of these functions, errors would be missed and the guest could hang or read corrupted data. (BZ#562776) All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update will take effect.
    last seen2020-06-01
    modified2020-06-02
    plugin id68005
    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/68005
    titleOracle Linux 5 : kvm (ELSA-2010-0126)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-947-1.NASL
    descriptionIt was discovered that the Linux kernel did not correctly handle memory protection of the Virtual Dynamic Shared Object page when running a 32-bit application on a 64-bit kernel. A local attacker could exploit this to cause a denial of service. (Only affected Ubuntu 6.06 LTS.) (CVE-2009-4271) It was discovered that the r8169 network driver did not correctly check the size of Ethernet frames. A remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2009-4537) Wei Yongjun discovered that SCTP did not correctly validate certain chunks. A remote attacker could send specially crafted traffic to monopolize CPU resources, leading to a denial of service. (Only affected Ubuntu 6.06 LTS.) (CVE-2010-0008) It was discovered that KVM did not correctly limit certain privileged IO accesses on x86. Processes in the guest OS with access to IO regions could gain further privileges within the guest OS. (Did not affect Ubuntu 6.06 LTS.) (CVE-2010-0298, CVE-2010-0306, CVE-2010-0419) Evgeniy Polyakov discovered that IPv6 did not correctly handle certain TUN packets. A remote attacker could exploit this to crash the system, leading to a denial of service. (Only affected Ubuntu 8.04 LTS.) (CVE-2010-0437) Sachin Prabhu discovered that GFS2 did not correctly handle certain locks. A local attacker with write access to a GFS2 filesystem could exploit this to crash the system, leading to a denial of service. (CVE-2010-0727) Jamie Strandboge discovered that network virtio in KVM did not correctly handle certain high-traffic conditions. A remote attacker could exploit this by sending specially crafted traffic to a guest OS, causing the guest to crash, leading to a denial of service. (Only affected Ubuntu 8.04 LTS.) (CVE-2010-0741) Marcus Meissner discovered that the USB subsystem did not correctly handle certain error conditions. A local attacker with access to a USB device could exploit this to read recently used kernel memory, leading to a loss of privacy and potentially root privilege escalation. (CVE-2010-1083) Neil Brown discovered that the Bluetooth subsystem did not correctly handle large amounts of traffic. A physically proximate remote attacker could exploit this by sending specially crafted traffic that would consume all available system memory, leading to a denial of service. (Ubuntu 6.06 LTS and 10.04 LTS were not affected.) (CVE-2010-1084) Jody Bruchon discovered that the sound driver for the AMD780V did not correctly handle certain conditions. A local attacker with access to this hardward could exploit the flaw to cause a system crash, leading to a denial of service. (CVE-2010-1085) Ang Way Chuang discovered that the DVB driver did not correctly handle certain MPEG2-TS frames. An attacker could exploit this by delivering specially crafted frames to monopolize CPU resources, leading to a denial of service. (Ubuntu 10.04 LTS was not affected.) (CVE-2010-1086) Trond Myklebust discovered that NFS did not correctly handle truncation under certain conditions. A local attacker with write access to an NFS share could exploit this to crash the system, leading to a denial of service. (Ubuntu 10.04 LTS was not affected.) (CVE-2010-1087) Al Viro discovered that automount of NFS did not correctly handle symlinks under certain conditions. A local attacker could exploit this to crash the system, leading to a denial of service. (Ubuntu 6.06 LTS and Ubuntu 10.04 LTS were not affected.) (CVE-2010-1088) Matt McCutchen discovered that ReiserFS did not correctly protect xattr files in the .reiserfs_priv directory. A local attacker could exploit this to gain root privileges or crash the system, leading to a denial of service. (CVE-2010-1146) Eugene Teo discovered that CIFS did not correctly validate arguments when creating new files. A local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges if mmap_min_addr was not set. (CVE-2010-1148) Catalin Marinas and Tetsuo Handa discovered that the TTY layer did not correctly release process IDs. A local attacker could exploit this to consume kernel resources, leading to a denial of service. (CVE-2010-1162) Neil Horman discovered that TIPC did not correctly check its internal state. A local attacker could send specially crafted packets via AF_TIPC that would cause the system to crash, leading to a denial of service. (Ubuntu 6.06 LTS was not affected.) (CVE-2010-1187) Masayuki Nakagawa discovered that IPv6 did not correctly handle certain settings when listening. If a socket were listening with the IPV6_RECVPKTINFO flag, a remote attacker could send specially crafted traffic that would cause the system to crash, leading to a denial of service. (Only Ubuntu 6.06 LTS was affected.) (CVE-2010-1188) Oleg Nesterov discovered that the Out-Of-Memory handler did not correctly handle certain arrangements of processes. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-1488). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id46810
    published2010-06-04
    reporterUbuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/46810
    titleUbuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : linux, linux-source-2.6.15 vulnerabilities (USN-947-1)

Oval

accepted2013-04-29T04:02:09.004-04:00
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
descriptionThe x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict writing of segment selectors to segment registers, which might allow guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch.
familyunix
idoval:org.mitre.oval:def:10139
statusaccepted
submitted2010-07-09T03:56:16-04:00
titleThe x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict writing of segment selectors to segment registers, which might allow guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch.
version18

Redhat

advisories
bugzilla
id563463
titleCVE-2010-0419 kvm: emulator privilege escalation segment selector check
oval
OR
  • commentRed Hat Enterprise Linux must be installed
    ovaloval:com.redhat.rhba:tst:20070304026
  • AND
    • commentRed Hat Enterprise Linux 5 is installed
      ovaloval:com.redhat.rhba:tst:20070331005
    • OR
      • AND
        • commentkvm-qemu-img is earlier than 0:83-105.el5_4.27
          ovaloval:com.redhat.rhsa:tst:20100126001
        • commentkvm-qemu-img is signed with Red Hat redhatrelease key
          ovaloval:com.redhat.rhsa:tst:20091465008
      • AND
        • commentkvm is earlier than 0:83-105.el5_4.27
          ovaloval:com.redhat.rhsa:tst:20100126003
        • commentkvm is signed with Red Hat redhatrelease key
          ovaloval:com.redhat.rhsa:tst:20091465006
      • AND
        • commentkmod-kvm is earlier than 0:83-105.el5_4.27
          ovaloval:com.redhat.rhsa:tst:20100126005
        • commentkmod-kvm is signed with Red Hat redhatrelease key
          ovaloval:com.redhat.rhsa:tst:20091465004
      • AND
        • commentkvm-tools is earlier than 0:83-105.el5_4.27
          ovaloval:com.redhat.rhsa:tst:20100126007
        • commentkvm-tools is signed with Red Hat redhatrelease key
          ovaloval:com.redhat.rhsa:tst:20091465002
rhsa
idRHSA-2010:0126
released2010-03-01
severityImportant
titleRHSA-2010:0126: kvm security and bug fix update (Important)
rpms
  • kmod-kvm-0:83-105.el5_4.27
  • kvm-0:83-105.el5_4.27
  • kvm-debuginfo-0:83-105.el5_4.27
  • kvm-qemu-img-0:83-105.el5_4.27
  • kvm-tools-0:83-105.el5_4.27
  • rhev-hypervisor-0:5.4-2.1.10.el5_4rhev2_1
  • rhev-hypervisor-pxe-0:5.4-2.1.10.el5_4rhev2_1

References