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CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2025-65637)

🗓️ 22 Jan 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 2 Views

CBL Mariner 2.0 releases vulnerable to logrus DoS via large single-line payloads; fixed in later versions.

Related
Refs
Code
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(295017);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/22");

  script_cve_id("CVE-2025-65637");

  script_name(english:"CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2025-65637)");

  script_set_attribute(attribute:"synopsis", value:
"The remote CBL Mariner host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of CBL-Mariner Releases installed on the remote CBL Mariner 2.0 host is prior to tested version. It is,
therefore, affected by a vulnerability as referenced in the CVE-2025-65637 advisory.

  - A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a
    single-line payload larger than 64KB without newline characters. Due to limitations in the internal
    bufio.Scanner, the read fails with token too long and the writer pipe is closed, leaving Writer()
    unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2.
    The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to
    function even if an error is logged. (CVE-2025-65637)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"solution", value:
"Update the affected 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:POC/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:P/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:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-65637");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/12/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/01/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cert-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cf-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cni-plugins");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:containerized-data-importer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:cri-o");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:dcos-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:flannel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:influxdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:jx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kube-vip-cloud-provider");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kubernetes");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:kubevirt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:local-path-provisioner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:moby-buildx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:moby-compose");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:microsoft:cbl-mariner:prometheus");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:microsoft:cbl-mariner");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MarinerOS 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/CBLMariner/release", "Host/CBLMariner/rpm-list", "Host/cpu");

  exit(0);
}
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/CBLMariner/release');
if (isnull(release) || 'CBL-Mariner' >!< release) audit(AUDIT_OS_NOT, 'CBL-Mariner');
var os_ver = pregmatch(pattern: "CBL-Mariner ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CBL-Mariner');
os_ver = os_ver[1];
if (! preg(pattern:"^2([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'CBL-Mariner 2.0', 'CBL-Mariner ' + os_ver);

if (!get_kb_item('Host/CBLMariner/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$" && 'aarch64' >!< cpu)
  audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CBL-Mariner', cpu);

var pkgs = [
    {'reference':'cert-manager-1.11.2-25.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cf-cli-8.4.0-26.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cni-plugins-1.3.0-10.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'containerized-data-importer-1.55.0-27.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cri-o-1.22.3-18.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dcos-cli-1.2.0-23.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'flannel-0.14.0-27.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'influxdb-2.6.1-25.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'influxdb-2.6.1-25.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jx-3.2.236-24.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kube-vip-cloud-provider-0.0.2-24.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kubernetes-1.28.4-21.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kubernetes-1.28.4-21.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kubevirt-0.59.0-32.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'local-path-provisioner-0.0.21-20.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'moby-buildx-0.7.1-27.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'moby-compose-2.17.3-13.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'prometheus-2.37.9-6.cm2', 'release':'2.0', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var 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;
  var exists_check = NULL;
  var cves = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'CBLMariner-' + 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 (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    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, cves:cves)) 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, 'cert-manager / cf-cli / cni-plugins / containerized-data-importer / etc');
}

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22 Jan 2026 00:00Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.5
EPSS0.00585
SSVC
2