Debian dla-4049 : librust-openssl-dev - 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-4049. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(216047);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/02/11");

  script_cve_id("CVE-2025-24898");

  script_name(english:"Debian dla-4049 : librust-openssl-dev - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4049
advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4049-1                [email protected]
    https://www.debian.org/lts/security/                       Andrej Shadura
    February 11, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : rust-openssl
    Version        : 0.10.29-1+deb11u1
    CVE ID         : CVE-2025-24898

    A vulnerability has been discovered in rust-openssl, a set of OpenSSL
    bindings for the Rust programming language.

    In affected versions ssl::select_next_proto can return a slice pointing
    into the server argument's buffer but with a lifetime bound to the
    client argument. In situations where the sever buffer's lifetime is
    shorter than the client buffer's, this can cause a use after free.

    This could cause the server to crash or to return arbitrary memory
    contents to the client. This security update fixes the signature of
    ssl::select_next_proto to properly constrain the output buffer's lifetime
    to that of both input buffers. In standard usage of ssl::select_next_proto
    in the callback passed to SslContextBuilder::set_alpn_select_callback,
    code is only affected if the server buffer is constructed within the
    callback.

    For Debian 11 bullseye, this problem has been fixed in version
    0.10.29-1+deb11u1.

    We recommend that you upgrade your rust-openssl packages.

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

    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 this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/rust-openssl
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?85d2128e");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-24898");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/rust-openssl");
  script_set_attribute(attribute:"solution", value:
"Upgrade the librust-openssl-dev packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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: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:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/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-2025-24898");

  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:"2025/02/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/02/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:librust-openssl-dev");
  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': 'librust-openssl-dev', 'reference': '0.10.29-1+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, 'librust-openssl-dev');
}