Debian dla-4273 : libecpg-compat3 - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4273. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(249339);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/14");

  script_cve_id(
    "CVE-2017-7484",
    "CVE-2025-8713",
    "CVE-2025-8714",
    "CVE-2025-8715"
  );

  script_name(english:"Debian dla-4273 : libecpg-compat3 - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4273 advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4273-1                [email protected]
    https://www.debian.org/lts/security/                           Chris Lamb
    August 14, 2025                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : postgresql-13
    Version        : 13.22-0+deb11u1
    CVE IDs        : CVE-2025-8713 CVE-2025-8714 CVE-2025-8715

    It was discovered that there were a number of vulnerabilities in
    postgresql-13, the widely-popular database management system:

     * CVE-2025-8713: The fix for CVE-2017-7484 (plus followup fixes),
       was intended to prevent leaky functions from being applied to
       statistics data for columns that the calling user does not have
       permission to read. Some gaps in that protection were found and
       addressed.

     * CVE-2025-8714: Prevent pg_dump scripts from being used to attack
       the user running the restore. An attacker who had gained
       superuser-level control over the source server might have been
       able to cause it to emit text that would be interpreted as psql
       meta-commands.

     * CVE-2025-8715: Convert newlines to spaces in names included in
       comments in pg_dump output, because names containing newlines
       offered the ability to inject arbitrary SQL commands into the
       output script.

    For Debian 11 bullseye, these problems have been fixed in version
    13.22-0+deb11u1. Thanks to Christoph Berg (myon) for preparing this
    upload.

    We recommend that you upgrade your postgresql-13 packages.

    For the detailed security status of postgresql-13 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/postgresql-13

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/postgresql-13
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1964ded4");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2017-7484");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-8713");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-8714");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-8715");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/postgresql-13");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libecpg-compat3 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7484");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg-compat3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpgtypes3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpq-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpq5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-client-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-doc-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-plperl-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-plpython3-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-pltcl-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-server-dev-13");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  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) 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('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '11.0', 'prefix': 'libecpg-compat3', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libecpg-dev', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libecpg6', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpgtypes3', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpq-dev', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpq5', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-client-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-doc-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-plperl-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-plpython3-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-pltcl-13', 'reference': '13.22-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-server-dev-13', 'reference': '13.22-0+deb11u1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libecpg-compat3 / libecpg-dev / libecpg6 / libpgtypes3 / libpq-dev / etc');
}