RHEL 2.1 / 3 / 4 / 5 : libxml2 (RHSA-2008:0032)

2008-01-14T00:00:00
ID REDHAT-RHSA-2008-0032.NASL
Type nessus
Reporter Tenable
Modified 2018-11-27T00:00:00

Description

Updated libxml2 packages that fix a security issue are now available.

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

The libxml2 packages provide a library that allows you to manipulate XML files. It includes support to read, modify, and write XML and HTML files.

A denial of service flaw was found in the way libxml2 processes certain content. If an application linked against libxml2 processes malformed XML content, it could cause the application to stop responding. (CVE-2007-6284)

Red Hat would like to thank the Google Security Team for responsibly disclosing this issue.

All users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2008:0032. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(29954);
  script_version ("1.23");
  script_cvs_date("Date: 2018/11/27 13:31:32");

  script_cve_id("CVE-2007-6284");
  script_bugtraq_id(27248);
  script_xref(name:"RHSA", value:"2008:0032");

  script_name(english:"RHEL 2.1 / 3 / 4 / 5 : libxml2 (RHSA-2008:0032)");
  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 libxml2 packages that fix a security issue are now available.

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

The libxml2 packages provide a library that allows you to manipulate
XML files. It includes support to read, modify, and write XML and HTML
files.

A denial of service flaw was found in the way libxml2 processes
certain content. If an application linked against libxml2 processes
malformed XML content, it could cause the application to stop
responding. (CVE-2007-6284)

Red Hat would like to thank the Google Security Team for responsibly
disclosing this issue.

All users are advised to upgrade to these updated packages, which
contain a backported patch to resolve this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-6284"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2008:0032"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected libxml2, libxml2-devel and / or libxml2-python
packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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(399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libxml2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libxml2-python");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/01/11");
  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) 2008-2018 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 = eregmatch(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 (! ereg(pattern:"^(2\.1|3|4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.x / 4.x / 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);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2008:0032";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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:"RHEL2.1", cpu:"i386", reference:"libxml2-2.4.19-7.ent")) flag++;

  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"libxml2-devel-2.4.19-7.ent")) flag++;

  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"libxml2-python-2.4.19-7.ent")) flag++;


  if (rpm_check(release:"RHEL3", reference:"libxml2-2.5.10-8")) flag++;

  if (rpm_check(release:"RHEL3", reference:"libxml2-devel-2.5.10-8")) flag++;

  if (rpm_check(release:"RHEL3", reference:"libxml2-python-2.5.10-8")) flag++;


  if (rpm_check(release:"RHEL4", reference:"libxml2-2.6.16-10.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"libxml2-devel-2.6.16-10.1")) flag++;

  if (rpm_check(release:"RHEL4", reference:"libxml2-python-2.6.16-10.1")) flag++;


  if (rpm_check(release:"RHEL5", reference:"libxml2-2.6.26-2.1.2.1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"libxml2-devel-2.6.26-2.1.2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"libxml2-python-2.6.26-2.1.2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"libxml2-python-2.6.26-2.1.2.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"libxml2-python-2.6.26-2.1.2.1")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, "libxml2 / libxml2-devel / libxml2-python");
  }
}