Debian DLA-1106-1 : libgd2 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 DLA-1106-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(103428);
  script_version("3.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/11/20");

  script_cve_id("CVE-2017-6362");

  script_name(english:"Debian DLA-1106-1 : libgd2 security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"A double-free vulnerability was discovered in the gdImagePngPtr()
function in libgd2, a library for programmatic graphics creation and
manipulation, which may result in denial of service or potentially the
execution of arbitrary code if a specially crafted file is processed.

For Debian 7 'Wheezy', these problems have been fixed in version
2.0.36~rc1~dfsg-6.1+deb7u10.

We recommend that you upgrade your libgd2 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/2017/09/msg00022.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/wheezy/libgd2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-6362");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd2-noxpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd2-noxpm-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd2-xpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd2-xpm-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2025 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:"7.0", prefix:"libgd-tools", reference:"2.0.36~rc1~dfsg-6.1+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"libgd2-noxpm", reference:"2.0.36~rc1~dfsg-6.1+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"libgd2-noxpm-dev", reference:"2.0.36~rc1~dfsg-6.1+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"libgd2-xpm", reference:"2.0.36~rc1~dfsg-6.1+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"libgd2-xpm-dev", reference:"2.0.36~rc1~dfsg-6.1+deb7u10")) 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");