Scientific Linux Security Update : xen on SL5.x i386/x86_64

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(60261);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2007-1320", "CVE-2007-1321", "CVE-2007-4993");

  script_name(english:"Scientific Linux Security Update : xen 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:
"Detail :

Joris van Rantwijk found a flaw in the Pygrub utility which is used as
a boot loader for guest domains. A malicious local administrator of a
guest domain could create a carefully crafted grub.conf file which
would trigger the execution of arbitrary code outside of that domain.
(CVE-2007-4993)

Tavis Ormandy discovered a heap overflow flaw during video-to-video
copy operations in the Cirrus VGA extension code used in Xen. A
malicious local administrator of a guest domain could potentially
trigger this flaw and execute arbitrary code outside of the domain.
(CVE-2007-1320)

Tavis Ormandy discovered insufficient input validation leading to a
heap overflow in the Xen NE2000 network driver. If the driver is in
use, a malicious local administrator of a guest domain could
potentially trigger this flaw and execute arbitrary code outside of
the domain. Xen does not use this driver by default. (CVE-2007-1321)"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0710&L=scientific-linux-errata&T=0&P=78
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f38e9a97"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected xen, xen-devel and / or xen-libs packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 119, 189);

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

  script_set_attribute(attribute:"generated_plugin", value:"current");
  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) 2012-2021 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:"xen-3.0.3-25.0.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"xen-devel-3.0.3-25.0.4.el5")) flag++;
if (rpm_check(release:"SL5", reference:"xen-libs-3.0.3-25.0.4.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");