Debian DLA-932-1 : ghostscript security update

2017-05-08T00:00:00
ID DEBIAN_DLA-932.NASL
Type nessus
Reporter Tenable
Modified 2018-10-01T00:00:00

Description

A vulnerability was 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.

For Debian 7 'Wheezy', these problems have been fixed in version 9.05~dfsg-6.3+deb7u6.

We recommend that you upgrade your ghostscript 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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-932-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(99998);
  script_version("3.8");
  script_cvs_date("Date: 2018/10/01 10:24:12");

  script_cve_id("CVE-2017-8291");

  script_name(english:"Debian DLA-932-1 : ghostscript security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability was 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.

For Debian 7 'Wheezy', these problems have been fixed in version
9.05~dfsg-6.3+deb7u6.

We recommend that you upgrade your ghostscript 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/2017/05/msg00002.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/ghostscript"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  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:POC/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:P/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ghostscript-x");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgs9-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 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:"7.0", prefix:"ghostscript", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"ghostscript-cups", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"ghostscript-dbg", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"ghostscript-doc", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"ghostscript-x", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libgs-dev", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libgs9", reference:"9.05~dfsg-6.3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libgs9-common", reference:"9.05~dfsg-6.3+deb7u6")) 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");