Vulnerabilities > CVE-2016-1544 - Resource Exhaustion vulnerability in multiple products

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
local
low complexity
nghttp2
fedoraproject
CWE-400
nessus
NVD
Published: 2020-02-06
Updated: 2020-02-10

Summary

nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).

Vulnerable Configurations

Part Description Count
Application
Nghttp2
53
OS
Fedoraproject
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • XML Ping of the Death
    An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
  • XML Entity Expansion
    An attacker submits an XML document to a target application where the XML document uses nested entity expansion to produce an excessively large output XML. XML allows the definition of macro-like structures that can be used to simplify the creation of complex structures. However, this capability can be abused to create excessive demands on a processor's CPU and memory. A small number of nested expansions can result in an exponential growth in demands on memory.
  • Inducing Account Lockout
    An attacker leverages the security functionality of the system aimed at thwarting potential attacks to launch a denial of service attack against a legitimate system user. Many systems, for instance, implement a password throttling mechanism that locks an account after a certain number of incorrect log in attempts. An attacker can leverage this throttling mechanism to lock a legitimate user out of their own account. The weakness that is being leveraged by an attacker is the very security feature that has been put in place to counteract attacks.
  • Violating Implicit Assumptions Regarding XML Content (aka XML Denial of Service (XDoS))
    XML Denial of Service (XDoS) can be applied to any technology that utilizes XML data. This is, of course, most distributed systems technology including Java, .Net, databases, and so on. XDoS is most closely associated with web services, SOAP, and Rest, because remote service requesters can post malicious XML payloads to the service provider designed to exhaust the service provider's memory, CPU, and/or disk space. The main weakness in XDoS is that the service provider generally must inspect, parse, and validate the XML messages to determine routing, workflow, security considerations, and so on. It is exactly these inspection, parsing, and validation routines that XDoS targets. There are three primary attack vectors that XDoS can navigate Target CPU through recursion: attacker creates a recursive payload and sends to service provider Target memory through jumbo payloads: service provider uses DOM to parse XML. DOM creates in memory representation of XML document, but when document is very large (for example, north of 1 Gb) service provider host may exhaust memory trying to build memory objects. XML Ping of death: attack service provider with numerous small files that clog the system. All of the above attacks exploit the loosely coupled nature of web services, where the service provider has little to no control over the service requester and any messages the service requester sends.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2016-3D9EFE44D8.NASL
    descriptionCVE-2016-1544: Out of memory in nghttpd, nghttp, and libnghttp2_asio applications due to unlimited incoming HTTP header fields: https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-03-04
    plugin id89521
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89521
    titleFedora 22 : nghttp2-1.7.1-1.fc22 (2016-3d9efe44d8)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2016-3d9efe44d8.
#

include("compat.inc");

if (description)
{
  script_id(89521);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-1544");
  script_xref(name:"FEDORA", value:"2016-3d9efe44d8");

  script_name(english:"Fedora 22 : nghttp2-1.7.1-1.fc22 (2016-3d9efe44d8)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2016-1544: Out of memory in nghttpd, nghttp, and libnghttp2_asio
applications due to unlimited incoming HTTP header fields:
https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1308461"
  );
  # https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/nghttp2/nghttp2/releases/tag/v1.7.1"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2016-February/177666.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5dce1dd6"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected nghttp2 package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nghttp2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:22");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^22([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 22.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC22", reference:"nghttp2-1.7.1-1.fc22")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nghttp2");
}
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-314.NASL
    descriptionThis update for nghttp2 fixes the following vulnerabilities : - CVE-2016-1544: A malicious remote attacker could have caused an Out of memory condition due to unlimited incoming HTTP header fields (boo#966514)
    last seen2020-06-05
    modified2016-03-10
    plugin id89812
    published2016-03-10
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89812
    titleopenSUSE Security Update : nghttp2 (openSUSE-2016-314)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2016-314.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(89812);
  script_version("2.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-1544");

  script_name(english:"openSUSE Security Update : nghttp2 (openSUSE-2016-314)");
  script_summary(english:"Check for the openSUSE-2016-314 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for nghttp2 fixes the following vulnerabilities :

  - CVE-2016-1544: A malicious remote attacker could have
    caused an Out of memory condition due to unlimited
    incoming HTTP header fields (boo#966514)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=966514"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected nghttp2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2-14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2-14-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2_asio-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2_asio1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libnghttp2_asio1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nghttp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nghttp2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nghttp2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python-nghttp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python-nghttp2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2-14-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2-14-debuginfo-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2-devel-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2_asio-devel-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2_asio1-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"libnghttp2_asio1-debuginfo-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"nghttp2-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"nghttp2-debuginfo-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"nghttp2-debugsource-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"python-nghttp2-1.3.4-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"python-nghttp2-debuginfo-1.3.4-3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libnghttp2-14 / libnghttp2-14-debuginfo / libnghttp2-devel / etc");
}
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201612-13.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201612-13 (nghttp2: Denial of Service) Nghttpd, nghttp, and libnghttp2_asio applications do not limit the memory usage for the incoming HTTP header field. If a peer sends a specially crafted HTTP/2 HEADERS frame and CONTINUATION frame, they will crash with an out of memory error. Impact : A remote attacker could possibly cause a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id95528
    published2016-12-05
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/95528
    titleGLSA-201612-13 : nghttp2: Denial of Service
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201612-13.
#
# The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(95528);
  script_version("3.2");
  script_cvs_date("Date: 2020/02/12");

  script_cve_id("CVE-2016-1544");
  script_xref(name:"GLSA", value:"201612-13");

  script_name(english:"GLSA-201612-13 : nghttp2: Denial of Service");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201612-13
(nghttp2: Denial of Service)

    Nghttpd, nghttp, and libnghttp2_asio applications do not limit the
      memory usage for the incoming HTTP header field. If a peer sends a
      specially crafted HTTP/2 HEADERS frame and CONTINUATION frame, they will
      crash with an out of memory error.
  
Impact :

    A remote attacker could possibly cause a Denial of Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201612-13"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All nghttp2 users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=net-libs/nghttp2-1.7.1'"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:nghttp2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/12/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/05");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"net-libs/nghttp2", unaffected:make_list("ge 1.7.1"), vulnerable:make_list("lt 1.7.1"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:qpkg_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nghttp2");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_07718E2BD29D11E5A95FB499BAEBFEAF.NASL
    descriptionNghttp2 reports : Out of memory in nghttpd, nghttp, and libnghttp2_asio applications due to unlimited incoming HTTP header fields. nghttpd, nghttp, and libnghttp2_asio applications do not limit the memory usage for the incoming HTTP header field. If peer sends specially crafted HTTP/2 HEADERS frames and CONTINUATION frames, they will crash with out of memory error. Note that libnghttp2 itself is not affected by this vulnerability.
    last seen2020-06-01
    modified2020-06-02
    plugin id88729
    published2016-02-15
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88729
    titleFreeBSD : nghttp2 -- Out of memory in nghttpd, nghttp, and libnghttp2_asio (07718e2b-d29d-11e5-a95f-b499baebfeaf)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 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("compat.inc");

if (description)
{
  script_id(88729);
  script_version("2.3");
  script_cvs_date("Date: 2020/02/12");

  script_cve_id("CVE-2016-1544");

  script_name(english:"FreeBSD : nghttp2 -- Out of memory in nghttpd, nghttp, and libnghttp2_asio (07718e2b-d29d-11e5-a95f-b499baebfeaf)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Nghttp2 reports :

Out of memory in nghttpd, nghttp, and libnghttp2_asio applications due
to unlimited incoming HTTP header fields.

nghttpd, nghttp, and libnghttp2_asio applications do not limit the
memory usage for the incoming HTTP header field. If peer sends
specially crafted HTTP/2 HEADERS frames and CONTINUATION frames, they
will crash with out of memory error.

Note that libnghttp2 itself is not affected by this vulnerability."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://nghttp2.org/blog/2016/02/11/nghttp2-v1-7-1/"
  );
  # https://vuxml.freebsd.org/freebsd/07718e2b-d29d-11e5-a95f-b499baebfeaf.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?19479b93"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:nghttp2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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:"nghttp2<1.7.1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:pkg_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2016-AC861A840E.NASL
    descriptionCVE-2016-1544: Out of memory in nghttpd, nghttp, and libnghttp2_asio applications due to unlimited incoming HTTP header fields: https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2016-03-04
    plugin id89593
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89593
    titleFedora 23 : nghttp2-1.7.1-1.fc23 (2016-ac861a840e)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2016-ac861a840e.
#

include("compat.inc");

if (description)
{
  script_id(89593);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-1544");
  script_xref(name:"FEDORA", value:"2016-ac861a840e");

  script_name(english:"Fedora 23 : nghttp2-1.7.1-1.fc23 (2016-ac861a840e)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2016-1544: Out of memory in nghttpd, nghttp, and libnghttp2_asio
applications due to unlimited incoming HTTP header fields:
https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1308461"
  );
  # https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/nghttp2/nghttp2/releases/tag/v1.7.1"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2016-February/177308.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6082e8a5"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected nghttp2 package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nghttp2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:23");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^23([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 23.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC23", reference:"nghttp2-1.7.1-1.fc23")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nghttp2");
}

The Hacker News

idTHN:35D65655AF3E2530CD06D90BAC7FBED8
last seen2018-07-15
modified2018-07-15
published2016-08-03
reporterThe Hacker News
sourcehttps://thehackernews.com/2016/08/http2-protocol-security.html
title4 Flaws hit HTTP/2 Protocol that could allow Hackers to Disrupt Servers

References