CVE-2011-1756

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

modules/xmpp/serv_xmpp.c in Citadel 7.86 and earlier does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.

El archivo modules/xmpp/serv_xmpp.c en Citadel versión 7.86 y anteriores, no detectan apropiadamente la recursión durante la expansión de la entidad, lo que permite a los atacantes remotos causar una denegación de servicio (consumo de memoria y CPU) por medio de un documento XML especialmente diseñado que contiene un gran número de referencias de entidades anidadas, un problema similar a CVE-2003-1564.

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-19 CVE Reserved
2011-06-01 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-399: Resource Management Errors

CAPEC

References (8)

URL	Tag	Source
http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog	X_refsource_confirm
http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog	X_refsource_confirm
http://www.securityfocus.com/bid/48071	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c	2011-10-26
http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6	2011-10-26
http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz	2011-10-26

URL	Date	SRC
http://secunia.com/advisories/44788	2011-10-26
http://www.debian.org/security/2011/dsa-2250	2011-10-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				<= 7.86 Search vendor "Citadel" for product "Citadel" and version " <= 7.86"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.11 Search vendor "Citadel" for product "Citadel" and version "7.11"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.50 Search vendor "Citadel" for product "Citadel" and version "7.50"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.60 Search vendor "Citadel" for product "Citadel" and version "7.60"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.80 Search vendor "Citadel" for product "Citadel" and version "7.80"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.81 Search vendor "Citadel" for product "Citadel" and version "7.81"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.82 Search vendor "Citadel" for product "Citadel" and version "7.82"		-		Affected
Citadel Search vendor "Citadel"		Citadel Search vendor "Citadel" for product "Citadel"				7.84 Search vendor "Citadel" for product "Citadel" and version "7.84"		-		Affected