Vulnerabilities > CVE-2018-10243 - Out-of-bounds Read vulnerability in Oisf Libhtp 0.5.26

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1751-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(123832);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/23");

  script_cve_id("CVE-2018-10242", "CVE-2018-10243");

  script_name(english:"Debian DLA-1751-1 : suricata security update");
  script_summary(english:"Checks dpkg output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been found in suricata, the network
threat detection engine :

CVE-2018-10242

Missing length check causing out-of-bounds read in SSHParseBanner
(app-layer-ssh.c). Remote attackers might leverage this vulnerability
to cause DoS or potentially unauthorized disclosure of information.

CVE-2018-10243

Unexpected end of Authorization field causing heap-based buffer
over-read in htp_parse_authorization_digest (htp_parsers.c, from the
embedded copy of LibHTP). Remote attackers might leverage this
vulnerability to cause DoS or potentially unauthorized disclosure of
information.

For Debian 8 'Jessie', these problems have been fixed in version
2.0.7-2+deb8u4.

We recommend that you upgrade your suricata packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2019/04/msg00010.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/suricata"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected suricata package."
  );
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:suricata");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 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:"8.0", prefix:"suricata", reference:"2.0.7-2+deb8u4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");