Debian DLA-1651-1 : 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-1651-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(121483);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/25");

  script_cve_id(
    "CVE-2018-1000222",
    "CVE-2018-5711",
    "CVE-2019-6977",
    "CVE-2019-6978"
  );

  script_name(english:"Debian DLA-1651-1 : libgd2 security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Several issues in libgd2, a graphics library that allows to quickly
draw images, have been found.

CVE-2019-6977 A potential double free in gdImage*Ptr() has been
reported by Solmaz Salimi (aka. Rooney).

CVE-2019-6978 Simon Scannell found a heap-based buffer overflow,
exploitable with crafted image data.

CVE-2018-1000222 A new double free vulnerabilities in gdImageBmpPtr()
has been reported by Solmaz Salimi (aka. Rooney).

CVE-2018-5711 Due to an integer signedness error the GIF core parsing
function can enter an infinite loop. This will lead to a Denial of
Service and exhausted server resources.

For Debian 8 'Jessie', these problems have been fixed in version
2.1.0-5+deb8u12.

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/2019/01/msg00028.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/libgd2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  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-2019-6978");

  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:"2018/01/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd-dev");
  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-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd2-xpm-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgd3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian 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/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:"libgd-dbg", reference:"2.1.0-5+deb8u12")) flag++;
if (deb_check(release:"8.0", prefix:"libgd-dev", reference:"2.1.0-5+deb8u12")) flag++;
if (deb_check(release:"8.0", prefix:"libgd-tools", reference:"2.1.0-5+deb8u12")) flag++;
if (deb_check(release:"8.0", prefix:"libgd2-noxpm-dev", reference:"2.1.0-5+deb8u12")) flag++;
if (deb_check(release:"8.0", prefix:"libgd2-xpm-dev", reference:"2.1.0-5+deb8u12")) flag++;
if (deb_check(release:"8.0", prefix:"libgd3", reference:"2.1.0-5+deb8u12")) 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");