Amazon Linux 2 : libcdio (ALAS-2019-1151)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2019-1151.
#

include('compat.inc');

if (description)
{
  script_id(121364);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/26");

  script_cve_id("CVE-2017-18198", "CVE-2017-18199", "CVE-2017-18201");
  script_xref(name:"ALAS", value:"2019-1151");

  script_name(english:"Amazon Linux 2 : libcdio (ALAS-2019-1151)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"A heap corruption bug was found in the way libcdio handled processing
of ISO files. An attacker could potentially use this flaw to crash
applications using libcdio by tricking them into processing crafted
ISO files, thus resulting in local DoS.(CVE-2017-18198)

A double-free flaw was found in the way libcdio handled processing of
ISO files. An attacker could potentially use this flaw to crash
applications using libcdio by tricking them into processing crafted
ISO files.(CVE-2017-18201)

A NULL pointer dereference flaw was found in the way libcdio handled
processing of ISO files. An attacker could potentially use this flaw
to crash applications using libcdio by tricking them into processing
crafted ISO files.(CVE-2017-18199)");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2019-1151.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update libcdio' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-18201");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libcdio");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libcdio-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libcdio-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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 != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

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


flag = 0;
if (rpm_check(release:"AL2", reference:"libcdio-0.92-3.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"libcdio-debuginfo-0.92-3.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"libcdio-devel-0.92-3.amzn2")) 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, "libcdio / libcdio-debuginfo / libcdio-devel");
}