Debian DSA-3838-1 : ghostscript - security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3838. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(99741);
  script_version("3.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/25");

  script_cve_id(
    "CVE-2016-10219",
    "CVE-2016-10220",
    "CVE-2017-5951",
    "CVE-2017-7207",
    "CVE-2017-8291"
  );
  script_xref(name:"DSA", value:"3838");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/06/14");

  script_name(english:"Debian DSA-3838-1 : ghostscript - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"Several vulnerabilities were discovered in Ghostscript, the GPL
PostScript/PDF interpreter, which may lead to the execution of
arbitrary code or denial of service if a specially crafted Postscript
file is processed.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=858350");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859666");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859694");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859696");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861295");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/ghostscript");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2017/dsa-3838");
  script_set_attribute(attribute:"solution", value:
"Upgrade the ghostscript packages.

For the stable distribution (jessie), these problems have been fixed
in version 9.06~dfsg-2+deb8u5.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");

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

  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/01");

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

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

  script_copyright(english:"This script is Copyright (C) 2017-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"ghostscript", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-dbg", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-doc", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"ghostscript-x", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs-dev", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs9", reference:"9.06~dfsg-2+deb8u5")) flag++;
if (deb_check(release:"8.0", prefix:"libgs9-common", reference:"9.06~dfsg-2+deb8u5")) flag++;

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