6.5 Medium
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
7.2 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
20.5%
According to the versions of the ncurses packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
ncurses 6.4-20230610 has a NULL pointer dereference in tgetstr in tinfo/lib_termcap.c.(CVE-2023-45918)
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component
_nc_wrap_entry().(CVE-2023-50495)
Tenable has extracted the preceding description block directly from the EulerOS ncurses security advisory.
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.
##
include('compat.inc');
if (description)
{
script_id(198196);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/30");
script_cve_id("CVE-2023-45918", "CVE-2023-50495");
script_name(english:"EulerOS 2.0 SP12 : ncurses (EulerOS-SA-2024-1745)");
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 ncurses packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :
ncurses 6.4-20230610 has a NULL pointer dereference in tgetstr in tinfo/lib_termcap.c.(CVE-2023-45918)
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component
_nc_wrap_entry().(CVE-2023-50495)
Tenable has extracted the preceding description block directly from the EulerOS ncurses security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2024-1745
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6e200c56");
script_set_attribute(attribute:"solution", value:
"Update the affected ncurses packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
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:R/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-2023-50495");
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:"2023/12/12");
script_set_attribute(attribute:"patch_publication_date", value:"2024/05/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/30");
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: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) 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/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
exit(0);
}
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12");
var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(12)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
var flag = 0;
var pkgs = [
"ncurses-6.3-5.h7.eulerosv2r12",
"ncurses-base-6.3-5.h7.eulerosv2r12",
"ncurses-libs-6.3-5.h7.eulerosv2r12"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"12", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, "ncurses");
}
6.5 Medium
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
7.2 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
20.5%