Debian dsa-6580 : 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 dsa-6580. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(371200);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/23");

  script_cve_id(
    "CVE-2026-55951",
    "CVE-2026-59696",
    "CVE-2026-65634",
    "CVE-2026-66357",
    "CVE-2026-66835",
    "CVE-2026-68956",
    "CVE-2026-69664",
    "CVE-2026-70399",
    "CVE-2026-70405",
    "CVE-2026-70409",
    "CVE-2026-71380",
    "CVE-2026-73270",
    "CVE-2026-73276",
    "CVE-2026-73812",
    "CVE-2026-74835",
    "CVE-2026-74994",
    "CVE-2026-75538",
    "CVE-2026-89422"
  );
  script_xref(name:"IAVA", value:"2026-A-0928-S");
  script_xref(name:"IAVA", value:"2026-A-1041");

  script_name(english:"Debian dsa-6580 : 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 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-6580 advisory.

    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-6580-1                   [email protected]
    https://www.debian.org/security/                                  Aron Xu
    October 23, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : erlang
    CVE ID         : CVE-2026-55951 CVE-2026-59696 CVE-2026-65634 CVE-2026-66357
                     CVE-2026-66835 CVE-2026-68956 CVE-2026-69664 CVE-2026-70399
                     CVE-2026-70405 CVE-2026-70409 CVE-2026-71380 CVE-2026-73270
                     CVE-2026-73276 CVE-2026-73812 CVE-2026-74835 CVE-2026-74994
                     CVE-2026-75538 CVE-2026-89422

    Several vulnerabilities were discovered in Erlang/OTP, a programming
    language and runtime environment. These issues could result in denial of
    service, HTTP request smuggling, or bypass of authentication and access
    restrictions, including TLS server impersonation.

    The affected components include the HTTP client and server, SSH, TLS,
    ASN.1 decoding, the network driver, and URI, LDAP and SNMP parsing. The
    update tightens protocol validation and HTTP/SSH resource limits.
    Applications relying on previously permissive behavior may need
    adjustment.

    For the stable distribution (trixie), these problems have been fixed in
    version 1:27.3.4.1+dfsg-1+deb13u4.

    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 Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]

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-2026-55951");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-59696");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-65634");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-66357");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-66835");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-68956");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-69664");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-70399");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-70405");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-70409");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-71380");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-73270");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-73276");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-73812");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-74835");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-74994");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-75538");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-89422");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/trixie/erlang");
  script_set_attribute(attribute:"solution", value:
"Upgrade the erlang packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:N/I:N/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:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N");
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  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-69664");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-89422");

  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:"2026/09/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
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  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-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-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-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");
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  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) 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:"^(13)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 13.0', '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': '13.0', 'prefix': 'erlang', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-asn1', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-base', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-common-test', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-crypto', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-debugger', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-dev', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-dialyzer', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-diameter', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-doc', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-edoc', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-eldap', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-et', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-eunit', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-examples', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-ftp', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-inets', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-jinterface', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-megaco', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-mnesia', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-mode', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-nox', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-observer', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-odbc', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-os-mon', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-parsetools', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-public-key', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-reltool', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-runtime-tools', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-snmp', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-src', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-ssh', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-ssl', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-syntax-tools', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-tftp', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-tools', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-wx', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-x11', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'},
    {'release': '13.0', 'prefix': 'erlang-xmerl', 'reference': '1:27.3.4.1+dfsg-1+deb13u4'}
];

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, 'erlang / erlang-asn1 / erlang-base / erlang-common-test / etc');
}