According to the versions of the ncurses packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
There is an infinite loop in the next_char function in comp_scan.c in ncurses 6.0, related to libtic. A crafted input will lead to a remote denial of service attack.(CVE-2017-13728)
There is an illegal address access in the _nc_save_str function in alloc_entry.c in ncurses 6.0. It will lead to a remote denial of service attack.(CVE-2017-13729)
There is an illegal address access in the function
_nc_read_entry_source() in progs/tic.c in ncurses 6.0 that might lead to a remote denial of service attack.(CVE-2017-13730)
There is an illegal address access in the function postprocess_termcap() in parse_entry.c in ncurses 6.0 that will lead to a remote denial of service attack.(CVE-2017-13731)
There is an illegal address access in the function dump_uses() in progs/dump_entry.c in ncurses 6.0 that might lead to a remote denial of service attack.(CVE-2017-13732)
There is an illegal address access in the fmt_entry function in progs/dump_entry.c in ncurses 6.0 that might lead to a remote denial of service attack.(CVE-2017-13733)
There is an illegal address access in the
_nc_safe_strcat function in strings.c in ncurses 6.0 that will lead to a remote denial of service attack.(CVE-2017-13734)
There is a heap-based buffer over-read in the
_nc_find_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.(CVE-2019-17594)
There is a heap-based buffer over-read in the fmt_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.(CVE-2019-17595)
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(141674);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/14");
script_cve_id(
"CVE-2017-13728",
"CVE-2017-13729",
"CVE-2017-13730",
"CVE-2017-13731",
"CVE-2017-13732",
"CVE-2017-13733",
"CVE-2017-13734",
"CVE-2019-17594",
"CVE-2019-17595"
);
script_name(english:"EulerOS Virtualization 3.0.2.2 : ncurses (EulerOS-SA-2020-2207)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the ncurses packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :
- There is an infinite loop in the next_char function in
comp_scan.c in ncurses 6.0, related to libtic. A
crafted input will lead to a remote denial of service
attack.(CVE-2017-13728)
- There is an illegal address access in the _nc_save_str
function in alloc_entry.c in ncurses 6.0. It will lead
to a remote denial of service attack.(CVE-2017-13729)
- There is an illegal address access in the function
_nc_read_entry_source() in progs/tic.c in ncurses 6.0
that might lead to a remote denial of service
attack.(CVE-2017-13730)
- There is an illegal address access in the function
postprocess_termcap() in parse_entry.c in ncurses 6.0
that will lead to a remote denial of service
attack.(CVE-2017-13731)
- There is an illegal address access in the function
dump_uses() in progs/dump_entry.c in ncurses 6.0 that
might lead to a remote denial of service
attack.(CVE-2017-13732)
- There is an illegal address access in the fmt_entry
function in progs/dump_entry.c in ncurses 6.0 that
might lead to a remote denial of service
attack.(CVE-2017-13733)
- There is an illegal address access in the
_nc_safe_strcat function in strings.c in ncurses 6.0
that will lead to a remote denial of service
attack.(CVE-2017-13734)
- There is a heap-based buffer over-read in the
_nc_find_entry function in tinfo/comp_hash.c in the
terminfo library in ncurses before
6.1-20191012.(CVE-2019-17594)
- There is a heap-based buffer over-read in the fmt_entry
function in tinfo/comp_hash.c in the terminfo library
in ncurses before 6.1-20191012.(CVE-2019-17595)
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-2020-2207
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ef81f9d9");
script_set_attribute(attribute:"solution", value:
"Update the affected ncurses packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/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:L/I:N/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17595");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ncurses");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ncurses-base");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ncurses-libs");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.2");
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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.2") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.2");
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 = ["ncurses-5.9-14.20130511.h7.eulerosv2r7",
"ncurses-base-5.9-14.20130511.h7.eulerosv2r7",
"ncurses-libs-5.9-14.20130511.h7.eulerosv2r7"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", 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, "ncurses");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13728
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13729
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13730
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13731
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13732
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13733
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13734
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17594
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17595
www.nessus.org/u?ef81f9d9