Debian dla-4376 : erlang - 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-4376. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(276650);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/10");

  script_cve_id(
    "CVE-2025-4748",
    "CVE-2025-48038",
    "CVE-2025-48039",
    "CVE-2025-48041"
  );
  script_xref(name:"IAVA", value:"2025-A-0438-S");
  script_xref(name:"IAVA", value:"2025-A-0872-S");

  script_name(english:"Debian dla-4376 : erlang - 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-4376 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4376-1                [email protected]
    https://www.debian.org/lts/security/                   Jochen Sprickerhof
    November 24, 2025                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : erlang
    Version        : 1:23.2.6+dfsg-1+deb11u3
    CVE ID         : CVE-2025-4748 CVE-2025-48038 CVE-2025-48039 CVE-2025-48041
    Debian Bug     :

    Multiple vulnerabilities were fixed in Erlang an concurrent, real-time,
    distributed functional language.

    CVE-2025-4748

        Improper Limitation of a Pathname to a Restricted Directory ('Path
        Traversal') vulnerability in Erlang OTP (stdlib modules) allows
        Absolute Path Traversal, File Manipulation. This vulnerability is
        associated with program files lib/stdlib/src/zip.erl and program
        routines zip:unzip/1, zip:unzip/2, zip:extract/1, zip:extract/2
        unless the memory option is passed.

    CVE-2025-48038, CVE-2025-48039, CVE-2025-48041

        Allocation of Resources Without Limits or Throttling vulnerability
        in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation,
        Resource Leak Exposure, Flooding. These vulnerabilities are
        associated with program files lib/ssh/src/ssh_sftpd.erl.

    For Debian 11 bullseye, these problems have been fixed in version
    1:23.2.6+dfsg-1+deb11u3.

    We recommend that you upgrade your erlang packages.

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

    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/erlang");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-4748");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48038");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48039");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-48041");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/erlang");
  script_set_attribute(attribute:"solution", value:
"Upgrade the erlang packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L");
  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:L/AT:N/PR:L/UI:N/VC:N/VI:N/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-2025-4748");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2025-48041");

  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:"2025/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/11/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-asn1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-base-hipe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-common-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-crypto");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-debugger");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-dialyzer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-diameter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-edoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-eldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-erl-docgen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-et");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-eunit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-examples");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-ftp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-inets");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-jinterface");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-manpages");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-megaco");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-mnesia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-mode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-nox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-observer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-os-mon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-parsetools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-public-key");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-reltool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-runtime-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-src");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-ssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-syntax-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-tftp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-wx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:erlang-xmerl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025-2026 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': 'erlang', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-asn1', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-base', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-base-hipe', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-common-test', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-crypto', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-debugger', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-dev', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-dialyzer', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-diameter', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-doc', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-edoc', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-eldap', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-erl-docgen', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-et', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-eunit', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-examples', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-ftp', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-inets', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-jinterface', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-manpages', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-megaco', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-mnesia', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-mode', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-nox', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-observer', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-odbc', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-os-mon', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-parsetools', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-public-key', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-reltool', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-runtime-tools', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-snmp', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-src', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-ssh', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-ssl', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-syntax-tools', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-tftp', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-tools', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-wx', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-x11', 'reference': '1:23.2.6+dfsg-1+deb11u3'},
    {'release': '11.0', 'prefix': 'erlang-xmerl', 'reference': '1:23.2.6+dfsg-1+deb11u3'}
];

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_NOTE,
    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, 'erlang / erlang-asn1 / erlang-base / erlang-base-hipe / etc');
}