Amazon Linux AMI : freetype (ALAS-2011-20)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2011-20.
#

include("compat.inc");

if (description)
{
  script_id(69579);
  script_version("1.6");
  script_cvs_date("Date: 2018/04/18 15:09:34");

  script_cve_id("CVE-2011-3439");
  script_xref(name:"ALAS", value:"2011-20");
  script_xref(name:"RHSA", value:"2011:1455");

  script_name(english:"Amazon Linux AMI : freetype (ALAS-2011-20)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple input validation flaws were found in the way FreeType
processed CID-keyed fonts. If a specially crafted font file was loaded
by an application linked against FreeType, it could cause the
application to crash or, potentially, execute arbitrary code with the
privileges of the user running the application."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2011-20.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update freetype' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freetype");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freetype-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freetype-demos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freetype-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/11/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

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


flag = 0;
if (rpm_check(release:"ALA", reference:"freetype-2.3.11-6.11.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freetype-debuginfo-2.3.11-6.11.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freetype-demos-2.3.11-6.11.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"freetype-devel-2.3.11-6.11.amzn1")) 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, "freetype / freetype-debuginfo / freetype-demos / freetype-devel");
}