CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
96.9%
The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has libmspack packages installed that are affected by multiple vulnerabilities:
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash). (CVE-2018-14679)
In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write. (CVE-2018-18584)
chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has ‘\0’ as its first or second character (such as the /\0 name).
(CVE-2018-18585)
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. It does not reject blank CHM filenames.
(CVE-2018-14680)
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression. (CVE-2018-14682)
An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite. (CVE-2018-14681)
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-2019-0217. The text
# itself is copyright (C) ZTE, Inc.
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(131413);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/09");
script_cve_id(
"CVE-2018-14679",
"CVE-2018-14680",
"CVE-2018-14681",
"CVE-2018-14682",
"CVE-2018-18584",
"CVE-2018-18585"
);
script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : libmspack Multiple Vulnerabilities (NS-SA-2019-0217)");
script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has libmspack packages installed that are affected
by multiple vulnerabilities:
- An issue was discovered in mspack/chmd.c in libmspack
before 0.7alpha. There is an off-by-one error in the CHM
PMGI/PMGL chunk number validity checks, which could lead
to denial of service (uninitialized data dereference and
application crash). (CVE-2018-14679)
- In mspack/cab.h in libmspack before 0.8alpha and
cabextract before 1.8, the CAB block input buffer is one
byte too small for the maximal Quantum block, leading to
an out-of-bounds write. (CVE-2018-18584)
- chmd_read_headers in mspack/chmd.c in libmspack before
0.8alpha accepts a filename that has '\0' as its first
or second character (such as the /\0 name).
(CVE-2018-18585)
- An issue was discovered in mspack/chmd.c in libmspack
before 0.7alpha. It does not reject blank CHM filenames.
(CVE-2018-14680)
- An issue was discovered in mspack/chmd.c in libmspack
before 0.7alpha. There is an off-by-one error in the
TOLOWER() macro for CHM decompression. (CVE-2018-14682)
- An issue was discovered in kwajd_read_headers in
mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ
file header extensions could cause a one or two byte
overwrite. (CVE-2018-14681)
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-2019-0217");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL libmspack 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:M/Au:N/C:P/I:P/A:P");
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:R/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-2018-14682");
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:"2018/07/28");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/02");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 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);
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 5.04" &&
release !~ "CGSL MAIN 5.04")
audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');
if (!get_kb_item("Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "NewStart Carrier Grade Server Linux", cpu);
flag = 0;
pkgs = {
"CGSL CORE 5.04": [
"libmspack-0.5-0.7.alpha.el7",
"libmspack-debuginfo-0.5-0.7.alpha.el7",
"libmspack-devel-0.5-0.7.alpha.el7"
],
"CGSL MAIN 5.04": [
"libmspack-0.5-0.7.alpha.el7",
"libmspack-debuginfo-0.5-0.7.alpha.el7",
"libmspack-devel-0.5-0.7.alpha.el7"
]
};
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
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libmspack");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14679
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14680
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14681
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14682
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18584
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18585
security.gd-linux.com/notice/NS-SA-2019-0217
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
96.9%