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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.FEDORA_2024-EF8A7031E7.NASL
HistoryAug 17, 2024 - 12:00 a.m.

Fedora 39 : bind / bind-dyndb-ldap (2024-ef8a7031e7)

2024-08-1700:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
3
fedora 39
bind package
vulnerabilities
security fixes
update
bind 9.18.28
cve-2024-0760
resource records
database processing
cve-2024-1737
rfc 2931
denial-of-service
sig(0) protocol
cpu load
cve-2024-1975
logic error
data races
doh implementation
assertion failure
ns records
parent zones
serve-stale
isc
toshifumi sakaguchi
dzintars
ivo
nic.lv

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

8

Confidence

High

The remote Fedora 39 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2024-ef8a7031e7 advisory.

# Update to BIND 9.18.28

## Security Fixes

-    A malicious DNS client that sent many queries over TCP but never read the responses could cause a     server to respond slowly or not at all for other clients. This has been fixed. (CVE-2024-0760) [GL #4481]

-    It is possible to craft excessively large resource records sets, which have the effect of slowing     down database processing. This has been addressed by adding a configurable limit to the number of records     that can be stored per name and type in a cache or zone database. The default is 100, which can be tuned     with the new max-records-per-type option. [GL #497] [GL #3405]

    It is possible to craft excessively large numbers of resource record types for a given owner name,     which has the effect of slowing down database processing. This has been addressed by adding a configurable     limit to the number of records that can be stored per name and type in a cache or zone database. The     default is 100, which can be tuned with the new max-types-per-name option. (CVE-2024-1737) [GL #3403]

    ISC would like to thank Toshifumi Sakaguchi who independently discovered and responsibly reported the     issue to ISC. [GL #4548]

-    Validating DNS messages signed using the SIG(0) protocol (RFC 2931) could cause excessive CPU load,     leading to a denial-of-service condition. Support for SIG(0) message validation was removed from this     version of named. (CVE-2024-1975) [GL #4480]

-    Due to a logic error, lookups that triggered serving stale data and required lookups in local     authoritative zone data could have resulted in an assertion failure. This has been fixed. (CVE-2024-4076)     [GL #4507]

Potential data races were found in our DoH implementation, related to HTTP/2 session object management and     endpoints set object management after reconfiguration. These issues have been fixed. [GL #4473]

ISC would like to thank Dzintars and Ivo from nic.lv for bringing this to our attention.

- When looking up the NS records of parent zones as part of looking up DS records, it was possible for     named to trigger an assertion failure if serve-stale was enabled. This has been fixed. [GL #4661]



- https://downloads.isc.org/isc/bind9/9.18.28/doc/arm/html/notes.html

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2024-ef8a7031e7
#

include('compat.inc');

if (description)
{
  script_id(205743);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/17");

  script_cve_id(
    "CVE-2024-0760",
    "CVE-2024-1737",
    "CVE-2024-1975",
    "CVE-2024-4076"
  );
  script_xref(name:"IAVA", value:"2024-A-0442");
  script_xref(name:"FEDORA", value:"2024-ef8a7031e7");

  script_name(english:"Fedora 39 : bind / bind-dyndb-ldap (2024-ef8a7031e7)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Fedora 39 host has packages installed that are affected by multiple vulnerabilities as referenced in the
FEDORA-2024-ef8a7031e7 advisory.

    # Update to BIND 9.18.28

    ## Security Fixes

    -    A malicious DNS client that sent many queries over TCP but never read the responses could cause a
    server to respond slowly or not at all for other clients. This has been fixed. (CVE-2024-0760) [GL #4481]

    -    It is possible to craft excessively large resource records sets, which have the effect of slowing
    down database processing. This has been addressed by adding a configurable limit to the number of records
    that can be stored per name and type in a cache or zone database. The default is 100, which can be tuned
    with the new max-records-per-type option. [GL #497] [GL #3405]

        It is possible to craft excessively large numbers of resource record types for a given owner name,
    which has the effect of slowing down database processing. This has been addressed by adding a configurable
    limit to the number of records that can be stored per name and type in a cache or zone database. The
    default is 100, which can be tuned with the new max-types-per-name option. (CVE-2024-1737) [GL #3403]

        ISC would like to thank Toshifumi Sakaguchi who independently discovered and responsibly reported the
    issue to ISC. [GL #4548]

    -    Validating DNS messages signed using the SIG(0) protocol (RFC 2931) could cause excessive CPU load,
    leading to a denial-of-service condition. Support for SIG(0) message validation was removed from this
    version of named. (CVE-2024-1975) [GL #4480]

    -    Due to a logic error, lookups that triggered serving stale data and required lookups in local
    authoritative zone data could have resulted in an assertion failure. This has been fixed. (CVE-2024-4076)
    [GL #4507]

    Potential data races were found in our DoH implementation, related to HTTP/2 session object management and
    endpoints set object management after reconfiguration. These issues have been fixed. [GL #4473]

    ISC would like to thank Dzintars and Ivo from nic.lv for bringing this to our attention.

    - When looking up the NS records of parent zones as part of looking up DS records, it was possible for
    named to trigger an assertion failure if serve-stale was enabled. This has been fixed. [GL #4661]



    - https://downloads.isc.org/isc/bind9/9.18.28/doc/arm/html/notes.html


Tenable has extracted the preceding description block directly from the Fedora 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://bodhi.fedoraproject.org/updates/FEDORA-2024-ef8a7031e7");
  script_set_attribute(attribute:"solution", value:
"Update the affected 32:bind and / or bind-dyndb-ldap packages.");
  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-2024-1975");

  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:"2024/07/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/08/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:39");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:bind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:bind-dyndb-ldap");
  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:"Fedora Local Security Checks");

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

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

  exit(0);
}


include('rpm.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) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^39([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 39', 'Fedora ' + 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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);

var pkgs = [
    {'reference':'bind-9.18.28-2.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
    {'reference':'bind-dyndb-ldap-11.10-26.fc39', 'release':'FC39', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_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;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && _release) {
    if (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)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bind / bind-dyndb-ldap');
}

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

8

Confidence

High