CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
EPSS
Percentile
97.0%
It was discovered that Dovecot incorrectly handled parsing certain email addresses. A remote attacker could use this issue to cause Dovecot to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-14461)
It was discovered that Dovecot incorrectly handled TLS SNI config lookups. A remote attacker could possibly use this issue to cause Dovecot to crash, resulting in a denial of service. (CVE-2017-15130).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3587-1. 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(107147);
script_version("3.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");
script_cve_id("CVE-2017-14461", "CVE-2017-15130");
script_xref(name:"USN", value:"3587-1");
script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : Dovecot vulnerabilities (USN-3587-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"It was discovered that Dovecot incorrectly handled parsing certain
email addresses. A remote attacker could use this issue to cause
Dovecot to crash, resulting in a denial of service, or possibly obtain
sensitive information. (CVE-2017-14461)
It was discovered that Dovecot incorrectly handled TLS SNI config
lookups. A remote attacker could possibly use this issue to cause
Dovecot to crash, resulting in a denial of service. (CVE-2017-15130).
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-3587-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/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:L/UI:N/S:U/C:L/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-2017-14461");
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:"2018/03/02");
script_set_attribute(attribute:"patch_publication_date", value:"2018/03/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/06");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-gssapi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-imapd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-lmtpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-lucene");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-managesieved");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-pop3d");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-sieve");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-solr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dovecot-sqlite");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mail-stack-delivery");
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:"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) 2018-2023 Canonical, Inc. / NASL script (C) 2018-2023 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)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', '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': 'dovecot-core', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-dev', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-gssapi', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-imapd', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-ldap', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-lmtpd', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-managesieved', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-mysql', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-pgsql', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-pop3d', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-sieve', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-solr', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'dovecot-sqlite', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '14.04', 'pkgname': 'mail-stack-delivery', 'pkgver': '1:2.2.9-1ubuntu2.4'},
{'osver': '16.04', 'pkgname': 'dovecot-core', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-dev', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-gssapi', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-imapd', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-ldap', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-lmtpd', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-lucene', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-managesieved', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-mysql', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-pgsql', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-pop3d', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-sieve', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-solr', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'dovecot-sqlite', 'pkgver': '1:2.2.22-1ubuntu2.7'},
{'osver': '16.04', 'pkgname': 'mail-stack-delivery', 'pkgver': '1:2.2.22-1ubuntu2.7'}
];
var flag = 0;
foreach 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)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'dovecot-core / dovecot-dev / dovecot-gssapi / dovecot-imapd / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | dovecot-core | p-cpe:/a:canonical:ubuntu_linux:dovecot-core |
canonical | ubuntu_linux | dovecot-dev | p-cpe:/a:canonical:ubuntu_linux:dovecot-dev |
canonical | ubuntu_linux | dovecot-gssapi | p-cpe:/a:canonical:ubuntu_linux:dovecot-gssapi |
canonical | ubuntu_linux | dovecot-imapd | p-cpe:/a:canonical:ubuntu_linux:dovecot-imapd |
canonical | ubuntu_linux | dovecot-ldap | p-cpe:/a:canonical:ubuntu_linux:dovecot-ldap |
canonical | ubuntu_linux | dovecot-lmtpd | p-cpe:/a:canonical:ubuntu_linux:dovecot-lmtpd |
canonical | ubuntu_linux | dovecot-lucene | p-cpe:/a:canonical:ubuntu_linux:dovecot-lucene |
canonical | ubuntu_linux | dovecot-managesieved | p-cpe:/a:canonical:ubuntu_linux:dovecot-managesieved |
canonical | ubuntu_linux | dovecot-mysql | p-cpe:/a:canonical:ubuntu_linux:dovecot-mysql |
canonical | ubuntu_linux | dovecot-pgsql | p-cpe:/a:canonical:ubuntu_linux:dovecot-pgsql |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
EPSS
Percentile
97.0%