Vulnerabilities > CVE-2016-4463 - 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
NONE Availability impact
HIGH Summary
Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply nested DTD.
Vulnerable Configurations
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_CB09A7AA534411E6A7BD14DAE9D210B8.NASL description Apache reports : The Xerces-C XML parser fails to successfully parse a DTD that is deeply nested, and this causes a stack overflow, which makes a denial of service attack against many applications possible by an unauthenticated attacker. Also, CVE-2016-2099: Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 3.1.3 and earlier allows context-dependent attackers to have unspecified impact via an invalid character in an XML document. last seen 2020-06-01 modified 2020-06-02 plugin id 92575 published 2016-07-27 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/92575 title FreeBSD : xercesi-c3 -- multiple vulnerabilities (cb09a7aa-5344-11e6-a7bd-14dae9d210b8) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-3335.NASL description From Red Hat Security Advisory 2018:3335 : An update for xerces-c is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Xerces-C is a validating XML parser written in a portable subset of C++. Xerces-C makes it easy to give your application the ability to read and write XML data. A shared library is provided for parsing, generating, manipulating, and validating XML documents. Security Fix(es) : * xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118784 published 2018-11-07 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118784 title Oracle Linux 7 : xerces-c (ELSA-2018-3335) NASL family Fedora Local Security Checks NASL id FEDORA_2016-84373C5F4F.NASL description Update to xerces-c 3.1.4, fixing CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92262 published 2016-07-15 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/92262 title Fedora 22 : xerces-c (2016-84373c5f4f) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1422.NASL description According to the version of the xerces-c package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2018-12-28 plugin id 119911 published 2018-12-28 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119911 title EulerOS 2.0 SP2 : xerces-c (EulerOS-SA-2018-1422) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3506.NASL description An update for xerces-c is now available for Red Hat Enterprise Linux 7.5 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Xerces-C is a validating XML parser written in a portable subset of C++. Xerces-C makes it easy to give your application the ability to read and write XML data. A shared library is provided for parsing, generating, manipulating, and validating XML documents. Security Fix(es) : * xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118791 published 2018-11-07 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118791 title RHEL 7 : xerces-c (RHSA-2018:3506) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2199.NASL description According to the version of the xerces-c package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply nested DTD.(CVE-2016-4463) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-11-08 plugin id 130661 published 2019-11-08 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130661 title EulerOS 2.0 SP5 : xerces-c (EulerOS-SA-2019-2199) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0072_XERCES-C.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has xerces-c packages installed that are affected by a vulnerability: - A stack exhaustion flaw was found in the way Xerces-C XML parser handled deeply nested DTDs. An attacker could potentially use this flaw to crash an application using Xerces-C by tricking it into processing specially crafted data. (CVE-2016-4463) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 127277 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127277 title NewStart CGSL CORE 5.04 / MAIN 5.04 : xerces-c Vulnerability (NS-SA-2019-0072) NASL family F5 Networks Local Security Checks NASL id F5_BIGIP_SOL70191975.NASL description Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply nested DTD.(CVE-2016-4463) last seen 2020-06-01 modified 2020-06-02 plugin id 93550 published 2016-09-16 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93550 title F5 Networks BIG-IP : Apache Xerces vulnerability (K70191975) NASL family Scientific Linux Local Security Checks NASL id SL_20181030_XERCES_C_ON_SL7_X.NASL description Security Fix(es) : - xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) last seen 2020-03-18 modified 2018-11-27 plugin id 119203 published 2018-11-27 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119203 title Scientific Linux Security Update : xerces-c on SL7.x x86_64 (20181030) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1046.NASL description xerces-c was updated to fix one security issue. This security issue was fixed : - CVE-2016-2099: Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ did not properly handle exceptions raised in the XMLReader class, which allowed context-dependent attackers to have unspecified impact via an invalid character in an XML document (bsc#979208). - CVE-2016-4463: Apache Xerces-C XML Parser crashed on malformed DTD (bnc#985860). This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2016-09-06 plugin id 93336 published 2016-09-06 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/93336 title openSUSE Security Update : xerces-c (openSUSE-2016-1046) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1395.NASL description According to the version of the xerces-c package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-15 modified 2018-12-10 plugin id 119523 published 2018-12-10 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119523 title EulerOS 2.0 SP3 : xerces-c (EulerOS-SA-2018-1395) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-876.NASL description This update for xerces-c fixes the following issues : - CVE-2016-4463 Apache Xerces-C XML Parser Crashes on Malformed DT (boo#985860) - CVE-2016-2099 Exception handling mistake causing use after free (boo#979208) last seen 2020-06-05 modified 2016-07-18 plugin id 92354 published 2016-07-18 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/92354 title openSUSE Security Update : xerces-c (openSUSE-2016-876) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3514.NASL description An update for xerces-c is now available for Red Hat Enterprise Linux 7.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Xerces-C is a validating XML parser written in a portable subset of C++. Xerces-C makes it easy to give your application the ability to read and write XML data. A shared library is provided for parsing, generating, manipulating, and validating XML documents. Security Fix(es) : * xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118793 published 2018-11-07 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118793 title RHEL 7 : xerces-c (RHSA-2018:3514) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-535.NASL description Brandon Perry discovered that xerces-c, a validating XML parser library for C++, fails to successfully parse a DTD that is deeply nested, causing a stack overflow. A remote unauthenticated attacker can take advantage of this flaw to cause a denial of service against applications using the xerces-c library. Additionally this update includes an enhancement to enable applications to fully disable DTD processing through the use of an environment variable (XERCES_DISABLE_DTD). For Debian 7 last seen 2020-03-17 modified 2016-07-01 plugin id 91902 published 2016-07-01 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/91902 title Debian DLA-535-1 : xerces-c security update NASL family Fedora Local Security Checks NASL id FEDORA_2016-9284772686.NASL description Update to xerces-c 3.1.4, fixing CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92267 published 2016-07-15 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/92267 title Fedora 24 : xerces-c (2016-9284772686) NASL family Fedora Local Security Checks NASL id FEDORA_2016-87E8468465.NASL description MinGW cross compiled xerces-c 3.1.4, fixing CVE-2016-0729, CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92263 published 2016-07-15 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/92263 title Fedora 23 : mingw-xerces-c (2016-87e8468465) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-2154-1.NASL description xerces-c was updated to fix one security issue. This security issue was fixed : - CVE-2016-2099: Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ did not properly handle exceptions raised in the XMLReader class, which allowed context-dependent attackers to have unspecified impact via an invalid character in an XML document (bsc#979208). - CVE-2016-4463: Apache Xerces-C XML Parser crashed on malformed DTD (bnc#985860). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 93308 published 2016-09-02 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93308 title SUSE SLED12 / SLES12 Security Update : xerces-c (SUSE-SU-2016:2154-1) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-3335.NASL description An update for xerces-c is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Xerces-C is a validating XML parser written in a portable subset of C++. Xerces-C makes it easy to give your application the ability to read and write XML data. A shared library is provided for parsing, generating, manipulating, and validating XML documents. Security Fix(es) : * xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 119005 published 2018-11-16 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119005 title CentOS 7 : xerces-c (CESA-2018:3335) NASL family Fedora Local Security Checks NASL id FEDORA_2016-D2D6890690.NASL description Update to xerces-c 3.1.4, fixing CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92291 published 2016-07-15 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/92291 title Fedora 23 : xerces-c (2016-d2d6890690) NASL family Fedora Local Security Checks NASL id FEDORA_2016-7615FEBBD6.NASL description MinGW cross compiled xerces-c 3.1.4, fixing CVE-2016-0729, CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92257 published 2016-07-15 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/92257 title Fedora 22 : mingw-xerces-c (2016-7615febbd6) NASL family Fedora Local Security Checks NASL id FEDORA_2016-0A061F6DD9.NASL description MinGW cross compiled xerces-c 3.1.4, fixing CVE-2016-0729, CVE-2016-2099 and CVE-2016-4463 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 2016-07-15 plugin id 92226 published 2016-07-15 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/92226 title Fedora 24 : mingw-xerces-c (2016-0a061f6dd9) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3610.NASL description Brandon Perry discovered that xerces-c, a validating XML parser library for C++, fails to successfully parse a DTD that is deeply nested, causing a stack overflow. A remote unauthenticated attacker can take advantage of this flaw to cause a denial of service against applications using the xerces-c library. Additionally this update includes an enhancement to enable applications to fully disable DTD processing through the use of an environment variable (XERCES_DISABLE_DTD). last seen 2020-06-01 modified 2020-06-02 plugin id 91892 published 2016-06-30 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/91892 title Debian DSA-3610-1 : xerces-c - security update NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2018-1124.NASL description A stack exhaustion flaw was found in the way Xerces-C XML parser handled deeply nested DTDs. An attacker could potentially use this flaw to crash an application using Xerces-C by tricking it into processing specially crafted data.(CVE-2016-4463) last seen 2020-05-15 modified 2018-12-10 plugin id 119507 published 2018-12-10 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119507 title Amazon Linux 2 : xerces-c (ALAS-2018-1124) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3335.NASL description An update for xerces-c is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Xerces-C is a validating XML parser written in a portable subset of C++. Xerces-C makes it easy to give your application the ability to read and write XML data. A shared library is provided for parsing, generating, manipulating, and validating XML documents. Security Fix(es) : * xerces-c: Stack overflow when parsing deeply nested DTD (CVE-2016-4463) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118542 published 2018-10-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118542 title RHEL 7 : xerces-c (RHSA-2018:3335)
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References
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00053.html
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00013.html
- http://packetstormsecurity.com/files/137714/Apache-Xerces-C-XML-Parser-Crash.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.securityfocus.com/archive/1/538784/100/0/threaded
- http://www.securityfocus.com/bid/91501
- http://www.securitytracker.com/id/1036211
- http://xerces.apache.org/xerces-c/secadv/CVE-2016-4463.txt
- https://access.redhat.com/errata/RHSA-2018:3335
- https://access.redhat.com/errata/RHSA-2018:3506
- https://access.redhat.com/errata/RHSA-2018:3514
- https://issues.apache.org/jira/browse/XERCESC-2069
- https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12336069
- https://www.debian.org/security/2016/dsa-3610
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00053.html
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.debian.org/security/2016/dsa-3610
- https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12336069
- https://issues.apache.org/jira/browse/XERCESC-2069
- https://access.redhat.com/errata/RHSA-2018:3514
- https://access.redhat.com/errata/RHSA-2018:3506
- https://access.redhat.com/errata/RHSA-2018:3335
- http://xerces.apache.org/xerces-c/secadv/CVE-2016-4463.txt
- http://www.securitytracker.com/id/1036211
- http://www.securityfocus.com/bid/91501
- http://www.securityfocus.com/archive/1/538784/100/0/threaded
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://packetstormsecurity.com/files/137714/Apache-Xerces-C-XML-Parser-Crash.html
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00013.html