Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-2107)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2023 Security Advisory ALAS2023-2026-2107.
##

include('compat.inc');

if (description)
{
  script_id(342043);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/31");

  script_cve_id(
    "CVE-2026-64017",
    "CVE-2026-64564",
    "CVE-2026-64581",
    "CVE-2026-68131",
    "CVE-2026-68138",
    "CVE-2026-68155",
    "CVE-2026-68160",
    "CVE-2026-68299",
    "CVE-2026-68335",
    "CVE-2026-68338",
    "CVE-2026-68480",
    "CVE-2026-72051",
    "CVE-2026-74556",
    "CVE-2026-74580"
  );

  script_name(english:"Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-2107)");

  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 ALAS2023-2026-2107 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    blk-mq: pop cached request if it is usable (CVE-2026-64017)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: don't free the ASCONF's own transport in DEL-IP processing (CVE-2026-64564)

    In the Linux kernel, the following vulnerability has been resolved:

    xfrm: fix sk_dst_cache double-free in xfrm_user_policy() (CVE-2026-64581)

    In the Linux kernel, the following vulnerability has been resolved:

    rbd: Reset positive result codes to zero in object map update path (CVE-2026-68131)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: serialize qdisc_rtab_list against concurrent get/put (CVE-2026-68138)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: Reject monmaps advertising zero monitors (CVE-2026-68155)

    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps() (CVE-2026-68160)

    In the Linux kernel, the following vulnerability has been resolved:

    vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets (CVE-2026-68299)

    In the Linux kernel, the following vulnerability has been resolved:

    rds: drop incoming messages that cross network namespace boundaries (CVE-2026-68335)

    In the Linux kernel, the following vulnerability has been resolved:

    net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/bugs: Make Safe-RET robust against interrupt injection (CVE-2026-68480)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-72051)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556)

    In the Linux kernel, the following vulnerability has been resolved:

    vhost: reset the vring metadata cache on vring reconfiguration (CVE-2026-74580)

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/ALAS2023-2026-2107.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-2026-64017.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-64564.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-64581.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68131.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68138.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68155.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68160.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68299.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68335.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68338.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-68480.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-72051.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-74556.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-74580.html");
  script_set_attribute(attribute:"solution", value:
"Run 'dnf update kernel --releasever 2023.12.20260831' or
  or 'dnf update --advisory ALAS2023-2026-2107 --releasever 2023.12.20260831' 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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-74556");

  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:"2026/07/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-livepatch-6.1.182-227.379");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-modules-extra-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2023");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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", "kpatch.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm2.inc");
include("hotfixes.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);

if (get_one_kb_item("Host/kpatch/kernel-cves"))
{
  var cve_list = make_list("CVE-2026-64017", "CVE-2026-64564", "CVE-2026-64581", "CVE-2026-68131", "CVE-2026-68138", "CVE-2026-68155", "CVE-2026-68160", "CVE-2026-68299", "CVE-2026-68335", "CVE-2026-68338", "CVE-2026-68480", "CVE-2026-72051", "CVE-2026-74556", "CVE-2026-74580");
  if (hotfix_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "kpatch hotfix for ALAS2023-2026-2107");
  }
  else
  {
    __rpm_report = hotfix_reporting_text();
  }
}

var pkgs = [
    {'reference':'bpftool-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'bpftool-6.1.'},
    {'reference':'bpftool-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'bpftool-6.1.'},
    {'reference':'bpftool-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'bpftool-debuginfo-6.1.'},
    {'reference':'bpftool-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'bpftool-debuginfo-6.1.'},
    {'reference':'kernel-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-6.1.'},
    {'reference':'kernel-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-6.1.'},
    {'reference':'kernel-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debuginfo-6.1.'},
    {'reference':'kernel-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debuginfo-6.1.'},
    {'reference':'kernel-debuginfo-common-aarch64-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debuginfo-common-aarch64-6.1.'},
    {'reference':'kernel-debuginfo-common-x86_64-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-debuginfo-common-x86_64-6.1.'},
    {'reference':'kernel-devel-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-6.1.'},
    {'reference':'kernel-devel-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-devel-6.1.'},
    {'reference':'kernel-headers-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-6.1.'},
    {'reference':'kernel-headers-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-headers-6.1.'},
    {'reference':'kernel-livepatch-6.1.182-227.379-1.0-0.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-livepatch-6.1.182-227.379-1.0-0.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-modules-extra-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-6.1.'},
    {'reference':'kernel-modules-extra-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-6.1.'},
    {'reference':'kernel-modules-extra-common-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-common-6.1.'},
    {'reference':'kernel-modules-extra-common-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-modules-extra-common-6.1.'},
    {'reference':'kernel-tools-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-6.1.'},
    {'reference':'kernel-tools-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-6.1.'},
    {'reference':'kernel-tools-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-debuginfo-6.1.'},
    {'reference':'kernel-tools-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-debuginfo-6.1.'},
    {'reference':'kernel-tools-devel-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-devel-6.1.'},
    {'reference':'kernel-tools-devel-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-tools-devel-6.1.'},
    {'reference':'perf-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-6.1.'},
    {'reference':'perf-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-6.1.'},
    {'reference':'perf-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-debuginfo-6.1.'},
    {'reference':'perf-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'perf-debuginfo-6.1.'},
    {'reference':'python3-perf-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python3-perf-6.1.'},
    {'reference':'python3-perf-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python3-perf-6.1.'},
    {'reference':'python3-perf-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python3-perf-debuginfo-6.1.'},
    {'reference':'python3-perf-debuginfo-6.1.182-227.379.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'python3-perf-debuginfo-6.1.'}
];

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, "bpftool / bpftool-debuginfo / kernel / etc");
}