CVE-2011-1756
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*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
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-04-19 CVE Reserved
- 2011-06-21 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS 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://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
| ||||||