Vulnerabilities > CVE-2016-6254 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
HIGH Availability impact
HIGH Summary
Heap-based buffer overflow in the parse_packet function in network.c in collectd before 5.4.3 and 5.x before 5.5.2 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted network packet.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
OS | 1 | |
OS | 2 | |
Application | 5 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_6DA45E385B5511E68859000C292EE6B8.NASL description The collectd Project reports : Emilien Gaspar has identified a heap overflow in collectd last seen 2020-06-01 modified 2020-06-02 plugin id 92813 published 2016-08-09 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92813 title FreeBSD : collectd -- Network plugin heap overflow (6da45e38-5b55-11e6-8859-000c292ee6b8) code # # (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("compat.inc"); if (description) { script_id(92813); script_version("2.6"); script_cvs_date("Date: 2018/12/19 13:21:18"); script_cve_id("CVE-2016-6254"); script_name(english:"FreeBSD : collectd -- Network plugin heap overflow (6da45e38-5b55-11e6-8859-000c292ee6b8)"); 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: "The collectd Project reports : Emilien Gaspar has identified a heap overflow in collectd's network plugin which can be triggered remotely and is potentially exploitable." ); # http://collectd.org/news.shtml#news98 script_set_attribute( attribute:"see_also", value:"https://collectd.org/news.shtml#news98" ); # https://vuxml.freebsd.org/freebsd/6da45e38-5b55-11e6-8859-000c292ee6b8.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?a0ca2b30" ); script_set_attribute(attribute:"solution", value:"Update the affected package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:collectd5"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/07/26"); script_set_attribute(attribute:"patch_publication_date", value:"2016/08/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/09"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2018 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:"collectd5<5.5.2")) 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");
NASL family Fedora Local Security Checks NASL id FEDORA_2016-23F0D552E8.NASL description - Upstream released new version (https://collectd.org/news.shtml#news98) - Contains fix for CVE-2016-6254 - Drop a few patches applied upstream Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-08-05 plugin id 92732 published 2016-08-05 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92732 title Fedora 23 : collectd (2016-23f0d552e8) NASL family Fedora Local Security Checks NASL id FEDORA_2016-E16A14FFC5.NASL description - Upstream released new version (https://collectd.org/news.shtml#news98) - Contains fix for CVE-2016-6254 - Drop a few patches applied upstream Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-08-05 plugin id 92737 published 2016-08-05 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92737 title Fedora 24 : collectd (2016-e16a14ffc5) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3636.NASL description Emilien Gaspar discovered that collectd, a statistics collection and monitoring daemon, incorrectly processed incoming network packets. This resulted in a heap overflow, allowing a remote attacker to either cause a DoS via application crash, or potentially execute arbitrary code. Additionally, security researchers at Columbia University and the University of Virginia discovered that collectd failed to verify a return value during initialization. This meant the daemon could sometimes be started without the desired, secure settings. last seen 2020-06-01 modified 2020-06-02 plugin id 92644 published 2016-08-01 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92644 title Debian DSA-3636-1 : collectd - security update NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2016-739.NASL description A heap-based buffer overflow in the parse_packet function in network.c in collectd allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted network packet. last seen 2020-06-01 modified 2020-06-02 plugin id 93251 published 2016-09-02 reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/93251 title Amazon Linux AMI : collectd (ALAS-2016-739)
References
- https://github.com/collectd/collectd/commit/b589096f907052b3a4da2b9ccc9b0e2e888dfc18
- http://www.debian.org/security/2016/dsa-3636
- http://collectd.org/news.shtml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZ5UXDOB7BA5NGE2F2I2BL4K6763DHW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CM4W5SJ4OTBGINGIN4NJLXCUZAZANO6J/