Amazon Linux 2023 : freeipmi, freeipmi-bmc-watchdog, freeipmi-devel (ALAS2023-2026-3134)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2023 Security Advisory ALAS2023-2026-3134.
##

include('compat.inc');

if (description)
{
  script_id(351030);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/29");

  script_cve_id(
    "CVE-2026-85504",
    "CVE-2026-85505",
    "CVE-2026-85506",
    "CVE-2026-85507",
    "CVE-2026-85508",
    "CVE-2026-85509"
  );
  script_xref(name:"IAVB", value:"2026-B-0251");

  script_name(english:"Amazon Linux 2023 : freeipmi, freeipmi-bmc-watchdog, freeipmi-devel (ALAS2023-2026-3134)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2023 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3134 advisory.

    FreeIPMI before 1.6.19 has a stack-based buffer overflow in _ipmi_sel_oem_fujitsu_get_sel_entry_long_text
    in libfreeipmi/sel/ipmi-sel-string-fujitsu-irmc-common.c via malformed Fujitsu SEL long-text responses.
    (CVE-2026-85504)

    ipmi-oem in FreeIPMI before 1.6.19 has a stack-based buffer over-read in
    ipmi_oem_fujitsu_get_sel_entry_long_text in ipmi-oem/ipmi-oem-fujitsu.c when a BMC provides a short
    response, a different vulnerability than CVE-2026-50031 (which has different affected versions).
    (CVE-2026-85505)

    ipmi-oem in FreeIPMI before 1.6.19 has a stack-based buffer overflow in _get_dell_system_info_idrac_info
    in ipmi-oem/ipmi-oem-dell.c (idrac-info subcommand to dell get-system-info). (CVE-2026-85506)

    ipmi-oem in FreeIPMI before 1.6.19 has a stack-based buffer overflow in _output_dell_system_info_cmc_info
    in ipmi-oem/ipmi-oem-dell.c (cmc-info subcommand to dell get-system-info). (CVE-2026-85507)

    ipmi-oem in FreeIPMI before 1.6.19 has a stack-based buffer overflow in
    _output_dell_system_info_cmc_ipv6_info in ipmi-oem/ipmi-oem-dell.c (cmc-ipv6-info subcommand to dell get-
    system-info). (CVE-2026-85508)

    FreeIPMI before 1.6.19 has a stack-based buffer overflow in _read_fru_data in libfreeipmi/fru/ipmi-fru.c
    when a BMC returns more bytes than requested. (CVE-2026-85509)

Tenable has extracted the preceding description block directly from the tested product 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://alas.aws.amazon.com//AL2023/ALAS2023-2026-3134.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85504.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85505.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85506.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85507.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85508.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-85509.html");
  script_set_attribute(attribute:"solution", value:
"Run 'dnf update freeipmi --releasever 2023.12.20260928' or
  or 'dnf update --advisory ALAS2023-2026-3134 --releasever 2023.12.20260928' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/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:H/I:H/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-2026-85509");

  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:"2026/09/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-bmc-watchdog");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-bmc-watchdog-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-ipmidetectd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-ipmidetectd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-ipmiseld");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:freeipmi-ipmiseld-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2023");
  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:"Amazon Linux 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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm2.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "-2023")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2023", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var pkgs = [
    {'reference':'freeipmi-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-bmc-watchdog-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-bmc-watchdog-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-bmc-watchdog-debuginfo-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-bmc-watchdog-debuginfo-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-debuginfo-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-debuginfo-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-debugsource-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-debugsource-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-devel-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-devel-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmidetectd-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmidetectd-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmidetectd-debuginfo-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmidetectd-debuginfo-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmiseld-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmiseld-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmiseld-debuginfo-1.6.19-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'freeipmi-ipmiseld-debuginfo-1.6.19-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', '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 = 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, "freeipmi / freeipmi-bmc-watchdog / freeipmi-bmc-watchdog-debuginfo / etc");
}