Fedora 32 : pngcheck (2020-daffd78c3d)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2020-daffd78c3d.
#

include("compat.inc");

if (description)
{
  script_id(144577);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/12/23");
  script_xref(name:"FEDORA", value:"2020-daffd78c3d");

  script_name(english:"Fedora 32 : pngcheck (2020-daffd78c3d)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Previous fix for buffer overrun printing the contents of the sPLT
chunk in certain malformed inputs (RHBZ#1905775) was incomplete; it
should be properly fixed now.

----

Security fix for multiple buffer overflows from crafted file input
(RHBZ#1902786,1902806,1902810: no CVE yet assigned), and for buffer
overrun printing the contents of the sPLT chunk in certain malformed
inputs (RHBZ#1905775: no tracking bug or CVE yet assigned); also, new
eXIf support and assorted small bug fixes

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2020-daffd78c3d"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected pngcheck package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:pngcheck");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:32");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/12/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/12/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/12/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^32([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 32", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC32", reference:"pngcheck-2.4.0-5.fc32")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pngcheck");
}