Mozilla Foundation reports :
Security researcher Francis Gabriel reported a heap-based buffer overflow in the way the Network Security Services (NSS) libraries parsed certain ASN.1 structures. An attacker could create a specially crafted certificate which, when parsed by NSS, would cause it to crash or execute arbitrary code with the permissions of the user.
Mozilla developer Tim Taubert used the Address Sanitizer tool and software fuzzing to discover a use-after-free vulnerability while processing DER encoded keys in the Network Security Services (NSS) libraries. The vulnerability overwrites the freed memory with zeroes.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
# copyright notice, this list of conditions and the following
# disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
# published online in any format, converted to PDF, PostScript,
# RTF and other formats) must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(89768);
script_version("2.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2016-1950", "CVE-2016-1979");
script_name(english:"FreeBSD : NSS -- multiple vulnerabilities (c4292768-5273-4f17-a267-c5fe35125ce4)");
script_summary(english:"Checks for updated packages in pkg_info output");
script_set_attribute(
attribute:"synopsis",
value:
"The remote FreeBSD host is missing one or more security-related
updates."
);
script_set_attribute(
attribute:"description",
value:
"Mozilla Foundation reports :
Security researcher Francis Gabriel reported a heap-based buffer
overflow in the way the Network Security Services (NSS) libraries
parsed certain ASN.1 structures. An attacker could create a
specially crafted certificate which, when parsed by NSS, would cause
it to crash or execute arbitrary code with the permissions of the
user.
Mozilla developer Tim Taubert used the Address Sanitizer tool and
software fuzzing to discover a use-after-free vulnerability while
processing DER encoded keys in the Network Security Services (NSS)
libraries. The vulnerability overwrites the freed memory with zeroes."
);
# https://www.mozilla.org/security/advisories/mfsa2016-35/
script_set_attribute(
attribute:"see_also",
value:"https://www.mozilla.org/en-US/security/advisories/mfsa2016-35/"
);
# https://www.mozilla.org/security/advisories/mfsa2016-36/
script_set_attribute(
attribute:"see_also",
value:"https://www.mozilla.org/en-US/security/advisories/mfsa2016-36/"
);
script_set_attribute(
attribute:"see_also",
value:"https://hg.mozilla.org/projects/nss/rev/b9a31471759d"
);
script_set_attribute(
attribute:"see_also",
value:"https://hg.mozilla.org/projects/nss/rev/7033b1193c94"
);
# https://vuxml.freebsd.org/freebsd/c4292768-5273-4f17-a267-c5fe35125ce4.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?082597b7"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-c6-nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-firefox");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-seamonkey");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-thunderbird");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:nss");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/08");
script_set_attribute(attribute:"patch_publication_date", value:"2016/03/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/09");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"FreeBSD Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
include("audit.inc");
include("freebsd_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (pkg_test(save_report:TRUE, pkg:"nss>=3.20<3.21.1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"nss<3.19.2.3")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-c6-nss>=3.20<3.21.0_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-c6-nss<3.19.2.3")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-firefox<45.0,1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-thunderbird<38.7.0")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux-seamonkey<2.42")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
freebsd | freebsd | linux-firefox | p-cpe:/a:freebsd:freebsd:linux-firefox |
freebsd | freebsd | linux-seamonkey | p-cpe:/a:freebsd:freebsd:linux-seamonkey |
freebsd | freebsd | linux-thunderbird | p-cpe:/a:freebsd:freebsd:linux-thunderbird |
freebsd | freebsd | nss | p-cpe:/a:freebsd:freebsd:nss |
freebsd | freebsd | cpe:/o:freebsd:freebsd | |
freebsd | freebsd | linux-c6-nss | p-cpe:/a:freebsd:freebsd:linux-c6-nss |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1950
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1979
www.nessus.org/u?082597b7
hg.mozilla.org/projects/nss/rev/7033b1193c94
hg.mozilla.org/projects/nss/rev/b9a31471759d
www.mozilla.org/en-US/security/advisories/mfsa2016-35/
www.mozilla.org/en-US/security/advisories/mfsa2016-36/