Debian dla-4848 : libapache2-mod-php8.2 - 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-4848. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(370148);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/21");

  script_cve_id("CVE-2026-109618", "CVE-2026-109619");

  script_name(english:"Debian dla-4848 : libapache2-mod-php8.2 - 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 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4848 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4848-1                [email protected]
    https://www.debian.org/lts/security/                       Guilhem Moulin
    October 21, 2026                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : php8.2
    Version        : 8.2.35-1~deb12u1
    CVE ID         : CVE-2026-109618 CVE-2026-109619

    Two critical vulnerabilities were found in PHP, a widely-used open source
    general purpose scripting language, which could result in remote
    execution of arbitrary code.

    CVE-2026-109618

        Out-of-memory handling can interrupt PHP while internal request data
        is only partially initialized.  Request cleanup may then treat the
        invalid data as valid.

    CVE-2026-109619

        Request-owned internal global state can survive after its backing
        memory has been freed.  A later request handled by the same worker
        may use that stale state before normal initialization resets it.

    For Debian 12 bookworm, these problems have been fixed in version
    8.2.35-1~deb12u1.

    We recommend that you upgrade your php8.2 packages.

    For the detailed security status of php8.2 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/php8.2

    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
    Attachment:
    signature.asc
    Description: PGP signature

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.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/php8.2");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-109618");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-109619");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/php8.2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libapache2-mod-php8.2 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-109619");

  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:"2026/10/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libphp8.2-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-zip");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.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:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', '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': '12.0', 'prefix': 'libapache2-mod-php8.2', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'libphp8.2-embed', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-bcmath', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-bz2', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-cgi', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-cli', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-common', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-curl', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-dba', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-dev', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-enchant', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-fpm', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-gd', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-gmp', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-imap', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-interbase', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-intl', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-ldap', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-mbstring', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-mysql', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-odbc', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-opcache', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-pgsql', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-phpdbg', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-pspell', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-readline', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-snmp', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-soap', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-sqlite3', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-sybase', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-tidy', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-xml', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-xsl', 'reference': '8.2.35-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-zip', 'reference': '8.2.35-1~deb12u1'}
];

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_HOLE,
    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, 'libapache2-mod-php8.2 / libphp8.2-embed / php8.2 / php8.2-bcmath / etc');
}