According to the versions of the compat-openldap package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
A flaw was discovered in OpenLDAP before 2.4.57 leading to an assertion failure in slapd in the saslAuthzTo validation, resulting in denial of service.(CVE-2020-36222)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service (double free and out-of-bounds read).(CVE-2020-36223)
A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service.(CVE-2020-36224)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service.(CVE-2020-36225)
A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service.(CVE-2020-36226)
A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancel_extop Cancel operation, resulting in denial of service.(CVE-2020-36227)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(153314);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/16");
script_cve_id(
"CVE-2020-36222",
"CVE-2020-36223",
"CVE-2020-36224",
"CVE-2020-36225",
"CVE-2020-36226",
"CVE-2020-36227"
);
script_name(english:"EulerOS 2.0 SP2 : compat-openldap (EulerOS-SA-2021-2361)");
script_summary(english:"Checks the rpm output for the updated packages.");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the compat-openldap package installed,
the EulerOS installation on the remote host is affected by the
following vulnerabilities :
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to an assertion failure in slapd in the saslAuthzTo
validation, resulting in denial of
service.(CVE-2020-36222)
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to a slapd crash in the Values Return Filter control
handling, resulting in denial of service (double free
and out-of-bounds read).(CVE-2020-36223)
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to an invalid pointer free and slapd crash in the
saslAuthzTo processing, resulting in denial of
service.(CVE-2020-36224)
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to a double free and slapd crash in the saslAuthzTo
processing, resulting in denial of
service.(CVE-2020-36225)
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to a memch->bv_len miscalculation and slapd crash in
the saslAuthzTo processing, resulting in denial of
service.(CVE-2020-36226)
- A flaw was discovered in OpenLDAP before 2.4.57 leading
to an infinite loop in slapd with the cancel_extop
Cancel operation, resulting in denial of
service.(CVE-2020-36227)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2361
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?43b6724d");
script_set_attribute(attribute:"solution", value:
"Update the affected compat-openldap packages.");
script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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-2020-36227");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:compat-openldap");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["compat-openldap-2.3.43-5.h3"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "compat-openldap");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36222
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36223
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36224
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36225
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36226
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36227
www.nessus.org/u?43b6724d