CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
17.2%
The version of util-linux installed on the remote host is prior to 2.37.4-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-218 advisory.
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems. (CVE-2021-3995)
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users’ filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems. (CVE-2021-3996)
A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an INPUTRC environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation.
This flaw affects util-linux versions prior to 2.37.4. (CVE-2022-0563)
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 Amazon Linux 2022 Security Advisory ALAS2022-2022-218.
##
include('compat.inc');
if (description)
{
script_id(168590);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/15");
script_cve_id("CVE-2021-3995", "CVE-2021-3996", "CVE-2022-0563");
script_name(english:"Amazon Linux 2022 : util-linux (ALAS2022-2022-218)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2022 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The version of util-linux installed on the remote host is prior to 2.37.4-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2022-2022-218 advisory.
- A logic error was found in the libmount library of util-linux in the function that allows an unprivileged
user to unmount a FUSE filesystem. This flaw allows an unprivileged local attacker to unmount FUSE
filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker
in its string form. An attacker may use this flaw to cause a denial of service to applications that use
the affected filesystems. (CVE-2021-3995)
- A logic error was found in the libmount library of util-linux in the function that allows an unprivileged
user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other
users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable
directory. An attacker may use this flaw to cause a denial of service to applications that use the
affected filesystems. (CVE-2021-3996)
- A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The
Readline library uses an INPUTRC environment variable to get a path to the library config file. When the
library cannot parse the specified file, it prints an error message containing data from the file. This
flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation.
This flaw affects util-linux versions prior to 2.37.4. (CVE-2022-0563)
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/AL2022/ALAS-2022-218.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-3995.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-3996.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-0563.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update util-linux' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0563");
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:"2022/02/21");
script_set_attribute(attribute:"patch_publication_date", value:"2022/12/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libblkid");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libblkid-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libblkid-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libfdisk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libfdisk-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libfdisk-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libmount");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libmount-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libmount-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libsmartcols");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libsmartcols-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libsmartcols-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libuuid");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libuuid-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:libuuid-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-libmount");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-libmount-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-core-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-user");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:util-linux-user-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:uuidd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:uuidd-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2022");
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) 2022-2023 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("rpm.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 != "-2022")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2022", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var pkgs = [
{'reference':'libblkid-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libblkid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libfdisk-devel-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libmount-devel-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libsmartcols-devel-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libuuid-devel-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-libmount-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-core-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debugsource-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debugsource-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-debugsource-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'util-linux-user-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'aarch64', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'i686', 'release':'AL-2022', 'rpm_spec_vers_cmp':TRUE},
{'reference':'uuidd-debuginfo-2.37.4-1.amzn2022.0.2', 'cpu':'x86_64', 'release':'AL-2022', '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;
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 (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)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
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, "libblkid / libblkid-debuginfo / libblkid-devel / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3995
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3996
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0563
alas.aws.amazon.com/AL2022/ALAS-2022-218.html
alas.aws.amazon.com/cve/html/CVE-2021-3995.html
alas.aws.amazon.com/cve/html/CVE-2021-3996.html
alas.aws.amazon.com/cve/html/CVE-2022-0563.html
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
17.2%