The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has libxml2 packages installed that are affected by multiple vulnerabilities:
xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs. (CVE-2019-19956)
xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.
(CVE-2019-20388)
xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. (CVE-2020-7595)
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 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2021-0148. The text
# itself is copyright (C) ZTE, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(154604);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/10/28");
script_cve_id("CVE-2019-19956", "CVE-2019-20388", "CVE-2020-7595");
script_xref(name:"IAVA", value:"2020-A-0326");
script_name(english:"NewStart CGSL CORE 5.05 / MAIN 5.05 : libxml2 Multiple Vulnerabilities (NS-SA-2021-0148)");
script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has libxml2 packages installed that are affected
by multiple vulnerabilities:
- xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to
newDoc->oldNs. (CVE-2019-19956)
- xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.
(CVE-2019-20388)
- xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file
situation. (CVE-2020-7595)
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:"http://security.gd-linux.com/notice/NS-SA-2021-0148");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-19956");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2019-20388");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-7595");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL libxml2 packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
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-2020-7595");
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:"2019/12/24");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:libxml2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:libxml2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:libxml2-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:libxml2-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libxml2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libxml2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libxml2-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libxml2-static");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_core:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:5");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL 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/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");
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);
var release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');
if (release !~ "CGSL CORE 5.05" &&
release !~ "CGSL MAIN 5.05")
audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.05 / NewStart CGSL MAIN 5.05');
if (!get_kb_item('Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);
var flag = 0;
var pkgs = {
'CGSL CORE 5.05': [
'libxml2-2.9.1-6.el7.5',
'libxml2-devel-2.9.1-6.el7.5',
'libxml2-python-2.9.1-6.el7.5',
'libxml2-static-2.9.1-6.el7.5'
],
'CGSL MAIN 5.05': [
'libxml2-2.9.1-6.el7.5',
'libxml2-devel-2.9.1-6.el7.5',
'libxml2-python-2.9.1-6.el7.5',
'libxml2-static-2.9.1-6.el7.5'
]
};
var pkg_list = pkgs[release];
foreach (pkg in pkg_list)
if (rpm_check(release:'ZTE ' + release, reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
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, 'libxml2');
}
Vendor | Product | Version | CPE |
---|---|---|---|
zte | cgsl_core | libxml2 | p-cpe:/a:zte:cgsl_core:libxml2 |
zte | cgsl_core | libxml2-python | p-cpe:/a:zte:cgsl_core:libxml2-python |
zte | cgsl_core | libxml2-devel | p-cpe:/a:zte:cgsl_core:libxml2-devel |
zte | cgsl_main | libxml2-python | p-cpe:/a:zte:cgsl_main:libxml2-python |
zte | cgsl_main | 5 | cpe:/o:zte:cgsl_main:5 |
zte | cgsl_core | 5 | cpe:/o:zte:cgsl_core:5 |
zte | cgsl_core | libxml2-static | p-cpe:/a:zte:cgsl_core:libxml2-static |
zte | cgsl_main | libxml2-devel | p-cpe:/a:zte:cgsl_main:libxml2-devel |
zte | cgsl_main | libxml2-static | p-cpe:/a:zte:cgsl_main:libxml2-static |
zte | cgsl_main | libxml2 | p-cpe:/a:zte:cgsl_main:libxml2 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19956
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20388
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7595
security.gd-linux.com/info/CVE-2019-19956
security.gd-linux.com/info/CVE-2019-20388
security.gd-linux.com/info/CVE-2020-7595
security.gd-linux.com/notice/NS-SA-2021-0148