CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
15.9%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:3433 advisory.
The protobuf packages provide Protocol Buffers, Google's data interchange format. Protocol Buffers can encode structured data in an efficient yet extensible format, and provide a flexible, efficient, and automated mechanism for serializing structured data.
Security Fix(es):
* protobuf: Incorrect parsing of nullchar in the proto symbol leads to Nullptr dereference (CVE-2021-22570)
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.
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.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2024:3433. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(197977);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/28");
script_cve_id("CVE-2021-22570");
script_xref(name:"RHSA", value:"2024:3433");
script_name(english:"RHEL 8 : protobuf (RHSA-2024:3433)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for protobuf.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2024:3433 advisory.
The protobuf packages provide Protocol Buffers, Google's data interchange format. Protocol Buffers can
encode structured data in an efficient yet extensible format, and provide a flexible, efficient, and
automated mechanism for serializing structured data.
Security Fix(es):
* protobuf: Incorrect parsing of nullchar in the proto symbol leads to Nullptr dereference
(CVE-2021-22570)
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.
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.");
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=2049429");
# https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_3433.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2d544e96");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2024:3433");
script_set_attribute(attribute:"solution", value:
"Update the RHEL protobuf package based on the guidance in RHSA-2024:3433.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/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-2021-22570");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(476);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/01/26");
script_set_attribute(attribute:"patch_publication_date", value:"2024/05/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:8.6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:protobuf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:protobuf-compiler");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:protobuf-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:protobuf-lite");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:protobuf-lite-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-protobuf");
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) 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: 'eq', os_version: os_ver, rhel_version: '8.6')) audit(AUDIT_OS_NOT, 'Red Hat 8.6', '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/aus/rhel8/8.6/x86_64/appstream/debug',
'content/aus/rhel8/8.6/x86_64/appstream/os',
'content/aus/rhel8/8.6/x86_64/appstream/source/SRPMS',
'content/e4s/rhel8/8.6/ppc64le/appstream/debug',
'content/e4s/rhel8/8.6/ppc64le/appstream/os',
'content/e4s/rhel8/8.6/ppc64le/appstream/source/SRPMS',
'content/e4s/rhel8/8.6/x86_64/appstream/debug',
'content/e4s/rhel8/8.6/x86_64/appstream/os',
'content/e4s/rhel8/8.6/x86_64/appstream/source/SRPMS',
'content/eus/rhel8/8.6/aarch64/appstream/debug',
'content/eus/rhel8/8.6/aarch64/appstream/os',
'content/eus/rhel8/8.6/aarch64/appstream/source/SRPMS',
'content/eus/rhel8/8.6/aarch64/codeready-builder/debug',
'content/eus/rhel8/8.6/aarch64/codeready-builder/os',
'content/eus/rhel8/8.6/aarch64/codeready-builder/source/SRPMS',
'content/eus/rhel8/8.6/ppc64le/appstream/debug',
'content/eus/rhel8/8.6/ppc64le/appstream/os',
'content/eus/rhel8/8.6/ppc64le/appstream/source/SRPMS',
'content/eus/rhel8/8.6/ppc64le/codeready-builder/debug',
'content/eus/rhel8/8.6/ppc64le/codeready-builder/os',
'content/eus/rhel8/8.6/ppc64le/codeready-builder/source/SRPMS',
'content/eus/rhel8/8.6/s390x/appstream/debug',
'content/eus/rhel8/8.6/s390x/appstream/os',
'content/eus/rhel8/8.6/s390x/appstream/source/SRPMS',
'content/eus/rhel8/8.6/s390x/codeready-builder/debug',
'content/eus/rhel8/8.6/s390x/codeready-builder/os',
'content/eus/rhel8/8.6/s390x/codeready-builder/source/SRPMS',
'content/eus/rhel8/8.6/x86_64/appstream/debug',
'content/eus/rhel8/8.6/x86_64/appstream/os',
'content/eus/rhel8/8.6/x86_64/appstream/source/SRPMS',
'content/eus/rhel8/8.6/x86_64/codeready-builder/debug',
'content/eus/rhel8/8.6/x86_64/codeready-builder/os',
'content/eus/rhel8/8.6/x86_64/codeready-builder/source/SRPMS',
'content/tus/rhel8/8.6/x86_64/appstream/debug',
'content/tus/rhel8/8.6/x86_64/appstream/os',
'content/tus/rhel8/8.6/x86_64/appstream/source/SRPMS'
],
'pkgs': [
{'reference':'protobuf-3.5.0-15.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'protobuf-compiler-3.5.0-15.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'protobuf-devel-3.5.0-15.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'protobuf-lite-3.5.0-15.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'protobuf-lite-devel-3.5.0-15.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-protobuf-3.5.0-15.el8_6', 'sp':'6', 'release':'8', '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 subscription_caveat = '\n' +
'NOTE: This vulnerability check contains fixes that apply to\n' +
'packages only available in the Red Hat Enterprise Linux\n' +
'Extended Update Support repository.\n' +
'Access to this repository requires a paid RHEL subscription.\n';
var extra = NULL;
if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
else extra = subscription_caveat + rpm_report_get();
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : extra
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'protobuf / protobuf-compiler / protobuf-devel / protobuf-lite / etc');
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
15.9%