CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
87.5%
The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3805-1 advisory.
Harry Sintonen discovered that curl incorrectly handled SASL authentication. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2018-16839)
Brian Carpenter discovered that curl incorrectly handled memory when closing certain handles. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-16840)
Brian Carpenter discovered that the curl command-line tool incorrectly handled error messages. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2018-16842)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3805-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(118591);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id("CVE-2018-16839", "CVE-2018-16840", "CVE-2018-16842");
script_xref(name:"USN", value:"3805-1");
script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : curl vulnerabilities (USN-3805-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-3805-1 advisory.
Harry Sintonen discovered that curl incorrectly handled SASL authentication. A remote attacker could use
this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2018-16839)
Brian Carpenter discovered that curl incorrectly handled memory when closing certain handles. A remote
attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2018-16840)
Brian Carpenter discovered that the curl command-line tool incorrectly handled error messages. A remote
attacker could possibly use this issue to obtain sensitive information. (CVE-2018-16842)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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:"https://ubuntu.com/security/notices/USN-3805-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/AC:L/PR:N/UI:N/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-2018-16840");
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:"2018/10/31");
script_set_attribute(attribute:"patch_publication_date", value:"2018/10/31");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:curl-udeb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-gnutls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-udeb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-gnutls-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-nss-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-openssl-dev");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2018-2024 Canonical, Inc. / NASL script (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release || '16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04 / 18.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var pkgs = [
{'osver': '14.04', 'pkgname': 'curl', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'curl-udeb', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl3', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl3-gnutls', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl3-nss', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl3-udeb', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl4-nss-dev', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '14.04', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '7.35.0-1ubuntu2.19'},
{'osver': '16.04', 'pkgname': 'curl', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl3', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl3-gnutls', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl3-nss', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl4-nss-dev', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '16.04', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '7.47.0-1ubuntu2.11'},
{'osver': '18.04', 'pkgname': 'curl', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl3-gnutls', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl3-nss', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl4', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl4-gnutls-dev', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl4-nss-dev', 'pkgver': '7.58.0-2ubuntu3.5'},
{'osver': '18.04', 'pkgname': 'libcurl4-openssl-dev', 'pkgver': '7.58.0-2ubuntu3.5'}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
var extra = '';
extra += ubuntu_report_get();
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'curl / curl-udeb / libcurl3 / libcurl3-gnutls / libcurl3-nss / etc');
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
87.5%