CVE-2013-2004

libX11: unbounded recursion leading to stack-overflow

Severity Score

6.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The (1) GetDatabase and (2) _XimParseStringFile functions in X.org libX11 1.5.99.901 (1.6 RC1) and earlier do not restrict the recursion depth when processing directives to include files, which allows X servers to cause a denial of service (stack consumption) via a crafted file.

Las funciones (1) GetDatabase y (2) _XimParseStringFile en X.org libX11 v1.5.99.901 (1.6 RC1) y anteriores no limitan la profundidad de recursividad en el tratamiento de las directivas de inclusión de archivos, lo que permite causar una denegación de servicio a los servidores X (por consumo de pila) a través de un archivo diseñado para tal fin.

Two stack-based buffer overflow flaws were found in the way libX11, the Core X11 protocol client library, processed certain user-specified files. A malicious X11 server could possibly use this flaw to crash an X11 client via a specially crafted file.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-02-19 CVE Reserved
2013-05-28 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (6)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2013/05/23/3	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.debian.org/security/2013/dsa-2693	2013-06-21
http://www.ubuntu.com/usn/USN-1854-1	2013-06-21
http://www.x.org/wiki/Development/Security/Advisory-2013-05-23	2013-06-21
https://access.redhat.com/security/cve/CVE-2013-2004	2014-10-13
https://bugzilla.redhat.com/show_bug.cgi?id=959112	2014-10-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
X Search vendor "X"		Libx11 Search vendor "X" for product "Libx11"				<= 1.5.99.901 Search vendor "X" for product "Libx11" and version " <= 1.5.99.901"		-		Affected
X Search vendor "X"		Libx11 Search vendor "X" for product "Libx11"				1.5.0 Search vendor "X" for product "Libx11" and version "1.5.0"		-		Affected