CVE-2016-4463

xerces-c: Stack overflow when parsing deeply nested DTD

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Desbordamiento de buffer basado en pila en Apache Xerces-C++ en versiones anteriores a 3.1.4 permite a atacantes dependientes del contexto provocar una denegación de servicio a través de un DTD anidado profundamente.

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.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-02 CVE Reserved
2016-06-29 CVE Published
2018-07-10 First Exploit
2024-03-28 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121: Stack-based Buffer Overflow

CAPEC

References (18)

URL	Tag	Source
http://packetstormsecurity.com/files/137714/Apache-Xerces-C-XML-Parser-Crash.html	X_refsource_misc
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	X_refsource_confirm
http://www.securityfocus.com/archive/1/538784/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/91501	Vdb Entry
http://www.securitytracker.com/id/1036211	Vdb Entry
http://xerces.apache.org/xerces-c/secadv/CVE-2016-4463.txt	X_refsource_confirm
https://issues.apache.org/jira/browse/XERCESC-2069	X_refsource_confirm
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=10510&version=12336069	X_refsource_confirm
https://www.oracle.com/security-alerts/cpuapr2020.html	X_refsource_misc

URL	Date	SRC
https://github.com/arntsonl/CVE-2016-4463	2018-07-10

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-07/msg00053.html	2023-02-12
http://lists.opensuse.org/opensuse-updates/2016-09/msg00013.html	2023-02-12
https://access.redhat.com/errata/RHSA-2018:3335	2023-02-12
https://access.redhat.com/errata/RHSA-2018:3506	2023-02-12
https://access.redhat.com/errata/RHSA-2018:3514	2023-02-12
https://www.debian.org/security/2016/dsa-3610	2023-02-12
https://access.redhat.com/security/cve/CVE-2016-4463	2018-11-06
https://bugzilla.redhat.com/show_bug.cgi?id=1348845	2018-11-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Xerces-c\+\+ Search vendor "Apache" for product "Xerces-c\+\+"				<= 3.1.3 Search vendor "Apache" for product "Xerces-c\+\+" and version " <= 3.1.3"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected