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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
72.8%
The remote NewStart CGSL host, running version MAIN 6.02, has libtiff packages installed that are affected by multiple vulnerabilities:
A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can lead to an abort, resulting in denial of service. (CVE-2020-35521)
In LibTIFF, there is a memory malloc failure in tif_pixarlog.c. A crafted TIFF document can lead to an abort, resulting in a remote denial of service attack. (CVE-2020-35522)
An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35523)
A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff’s TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35524)
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 ZTE advisory NS-SA-2022-0084. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(167491);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/11/15");
script_cve_id(
"CVE-2020-35521",
"CVE-2020-35522",
"CVE-2020-35523",
"CVE-2020-35524"
);
script_name(english:"NewStart CGSL MAIN 6.02 : libtiff Multiple Vulnerabilities (NS-SA-2022-0084)");
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 MAIN 6.02, has libtiff packages installed that are affected by multiple
vulnerabilities:
- A flaw was found in libtiff. Due to a memory allocation failure in tif_read.c, a crafted TIFF file can
lead to an abort, resulting in denial of service. (CVE-2020-35521)
- In LibTIFF, there is a memory malloc failure in tif_pixarlog.c. A crafted TIFF document can lead to an
abort, resulting in a remote denial of service attack. (CVE-2020-35522)
- An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an
attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat
from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35523)
- A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's
TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from
this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35524)
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:"http://security.gd-linux.com/notice/NS-SA-2022-0084");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-35521");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-35522");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-35523");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-35524");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL libtiff 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:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-2020-35524");
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:"2021/03/09");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libtiff");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libtiff-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022 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('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');
if (os_release !~ "CGSL MAIN 6.02")
audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.02');
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 MAIN 6.02': [
'libtiff-4.0.9-20.el8',
'libtiff-devel-4.0.9-20.el8'
]
};
var pkg_list = pkgs[os_release];
foreach (pkg in pkg_list)
if (rpm_check(release:'ZTE ' + os_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, 'libtiff');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35521
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35522
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35523
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35524
security.gd-linux.com/info/CVE-2020-35521
security.gd-linux.com/info/CVE-2020-35522
security.gd-linux.com/info/CVE-2020-35523
security.gd-linux.com/info/CVE-2020-35524
security.gd-linux.com/notice/NS-SA-2022-0084
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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
72.8%