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RHEL 9 : unbound (RHSA-2023:2370)

๐Ÿ—“๏ธย 12 May 2023ย 00:00:00Reported byย This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.Typeย 
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ย nessus
๐Ÿ”—ย www.tenable.com๐Ÿ‘ย 16ย Views

RHEL 9 host missing unbound security update (RHSA-2023:2370) - CVE-2022-320

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Related
Refs
Code
ReporterTitlePublishedViews
Family
AlmaLinux
Moderate: unbound security update
9 May 202300:00
โ€“almalinux
AlmaLinux
Moderate: unbound security and bug fix update
16 May 202300:00
โ€“almalinux
AlpineLinux
CVE-2022-3204
26 Sep 202214:15
โ€“alpinelinux
CBLMariner
CVE-2022-3204 affecting package unbound 1.10.0-4
27 Dec 202217:55
โ€“cbl_mariner
CBLMariner
CVE-2022-3204 affecting package unbound for versions less than 1.16.3-1
3 Nov 202220:37
โ€“cbl_mariner
Debian CVE
CVE-2022-3204
26 Sep 202214:15
โ€“debiancve
Tenable Nessus
Amazon Linux 2 : unbound (ALAS-2024-2467)
19 Feb 202400:00
โ€“nessus
Tenable Nessus
AlmaLinux 9 : unbound (ALSA-2023:2370)
14 May 202300:00
โ€“nessus
Tenable Nessus
FreeBSD : unbound -- Non-Responsive Delegation Attack (5a1c2e06-3fb7-11ed-a402-b42e991fc52e)
29 Sep 202200:00
โ€“nessus
Tenable Nessus
Oracle Linux 9 : unbound (ELSA-2023-2370)
15 May 202300:00
โ€“nessus
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:2370. The text
# itself is copyright (C) Red Hat, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(175439);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/08");

  script_cve_id("CVE-2022-3204");
  script_xref(name:"RHSA", value:"2023:2370");

  script_name(english:"RHEL 9 : unbound (RHSA-2023:2370)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for unbound.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2023:2370 advisory.

    The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.

    Security Fix(es):

    * unbound: NRDelegation attack leads to uncontrolled resource consumption (Non-Responsive Delegation
    Attack) (CVE-2022-3204)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes
    linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_2370.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0c3ab07d");
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ecefa061");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2128947");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:2370");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL unbound package based on the guidance in RHSA-2023:2370.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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: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-2022-3204");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/09/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-unbound");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:unbound");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:unbound-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:unbound-libs");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '9')) audit(AUDIT_OS_NOT, 'Red Hat 9.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/rhel9/9.1/aarch64/appstream/debug',
      'content/dist/rhel9/9.1/aarch64/appstream/os',
      'content/dist/rhel9/9.1/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/ppc64le/appstream/debug',
      'content/dist/rhel9/9.1/ppc64le/appstream/os',
      'content/dist/rhel9/9.1/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/s390x/appstream/debug',
      'content/dist/rhel9/9.1/s390x/appstream/os',
      'content/dist/rhel9/9.1/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.1/s390x/codeready-builder/os',
      'content/dist/rhel9/9.1/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/x86_64/appstream/debug',
      'content/dist/rhel9/9.1/x86_64/appstream/os',
      'content/dist/rhel9/9.1/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/aarch64/appstream/debug',
      'content/dist/rhel9/9.2/aarch64/appstream/os',
      'content/dist/rhel9/9.2/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/ppc64le/appstream/debug',
      'content/dist/rhel9/9.2/ppc64le/appstream/os',
      'content/dist/rhel9/9.2/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/s390x/appstream/debug',
      'content/dist/rhel9/9.2/s390x/appstream/os',
      'content/dist/rhel9/9.2/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.2/s390x/codeready-builder/os',
      'content/dist/rhel9/9.2/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/x86_64/appstream/debug',
      'content/dist/rhel9/9.2/x86_64/appstream/os',
      'content/dist/rhel9/9.2/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/aarch64/appstream/debug',
      'content/dist/rhel9/9.3/aarch64/appstream/os',
      'content/dist/rhel9/9.3/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/ppc64le/appstream/debug',
      'content/dist/rhel9/9.3/ppc64le/appstream/os',
      'content/dist/rhel9/9.3/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/s390x/appstream/debug',
      'content/dist/rhel9/9.3/s390x/appstream/os',
      'content/dist/rhel9/9.3/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.3/s390x/codeready-builder/os',
      'content/dist/rhel9/9.3/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/x86_64/appstream/debug',
      'content/dist/rhel9/9.3/x86_64/appstream/os',
      'content/dist/rhel9/9.3/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/aarch64/appstream/debug',
      'content/dist/rhel9/9.4/aarch64/appstream/os',
      'content/dist/rhel9/9.4/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/ppc64le/appstream/debug',
      'content/dist/rhel9/9.4/ppc64le/appstream/os',
      'content/dist/rhel9/9.4/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/s390x/appstream/debug',
      'content/dist/rhel9/9.4/s390x/appstream/os',
      'content/dist/rhel9/9.4/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.4/s390x/codeready-builder/os',
      'content/dist/rhel9/9.4/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/x86_64/appstream/debug',
      'content/dist/rhel9/9.4/x86_64/appstream/os',
      'content/dist/rhel9/9.4/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.5/aarch64/appstream/debug',
      'content/dist/rhel9/9.5/aarch64/appstream/os',
      'content/dist/rhel9/9.5/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.5/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.5/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.5/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.5/ppc64le/appstream/debug',
      'content/dist/rhel9/9.5/ppc64le/appstream/os',
      'content/dist/rhel9/9.5/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.5/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.5/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.5/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.5/s390x/appstream/debug',
      'content/dist/rhel9/9.5/s390x/appstream/os',
      'content/dist/rhel9/9.5/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.5/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.5/s390x/codeready-builder/os',
      'content/dist/rhel9/9.5/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.5/x86_64/appstream/debug',
      'content/dist/rhel9/9.5/x86_64/appstream/os',
      'content/dist/rhel9/9.5/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.5/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.5/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.5/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/aarch64/appstream/debug',
      'content/dist/rhel9/9/aarch64/appstream/os',
      'content/dist/rhel9/9/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9/aarch64/codeready-builder/os',
      'content/dist/rhel9/9/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/appstream/debug',
      'content/dist/rhel9/9/ppc64le/appstream/os',
      'content/dist/rhel9/9/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/s390x/appstream/debug',
      'content/dist/rhel9/9/s390x/appstream/os',
      'content/dist/rhel9/9/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9/s390x/codeready-builder/debug',
      'content/dist/rhel9/9/s390x/codeready-builder/os',
      'content/dist/rhel9/9/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/x86_64/appstream/debug',
      'content/dist/rhel9/9/x86_64/appstream/os',
      'content/dist/rhel9/9/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9/x86_64/codeready-builder/os',
      'content/dist/rhel9/9/x86_64/codeready-builder/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'python3-unbound-1.16.2-3.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'unbound-1.16.2-3.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'unbound-devel-1.16.2-3.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'unbound-libs-1.16.2-3.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'python3-unbound / unbound / unbound-devel / unbound-libs');
}

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12 May 2023 00:00Current
7.8High risk
Vulners AI Score7.8
CVSS37.5
EPSS0.006
16
.json
Report