Debian DSA-5438-1 : asterisk - 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-5438. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(177573);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/06/23");

  script_cve_id("CVE-2022-24793", "CVE-2023-27585");

  script_name(english:"Debian DSA-5438-1 : asterisk - 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
dsa-5438 advisory.

  - PJSIP is a free and open source multimedia communication library written in C. A buffer overflow
    vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't
    affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The
    difference is that this issue is in parsing the query record `parse_rr()`, while the issue in
    CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject`
    GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting
    `nameserver_count` to zero) or use an external resolver instead. (CVE-2022-24793)

  - PJSIP is a free and open source multimedia communication library written in C. A buffer overflow
    vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't
    affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793.
    The difference is that this issue is in parsing the query record `parse_query()`, while the issue in
    CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A
    workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an
    external resolver implementation instead. (CVE-2023-27585)

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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1036697");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/asterisk");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2023/dsa-5438");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-24793");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-27585");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/asterisk");
  script_set_attribute(attribute:"solution", value:
"Upgrade the asterisk packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:"cvss_score_source", value:"CVE-2022-24793");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-27585");

  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:"2022/04/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/06/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-dahdi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-mobile");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-mp3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-ooh323");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-voicemail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-voicemail-imapstorage");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-voicemail-odbcstorage");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk-vpb");
  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) 2023 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': 'asterisk', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-config', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-dahdi', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-dev', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-doc', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-mobile', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-modules', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-mp3', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-mysql', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-ooh323', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-tests', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-voicemail', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-voicemail-imapstorage', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-voicemail-odbcstorage', 'reference': '1:16.28.0~dfsg-0+deb11u3'},
    {'release': '11.0', 'prefix': 'asterisk-vpb', 'reference': '1:16.28.0~dfsg-0+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_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, 'asterisk / asterisk-config / asterisk-dahdi / asterisk-dev / etc');
}