CVE-2011-4415
Apache < 2.0.64 / < 2.2.21 mod_setenvif - Integer Overflow
Severity Score
1.2
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
3
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.
La función ap_pregsub en server/util.c en el servidor HTTP Apache v2.0.x hasta la 2.0.64 y la v2.2.x hasta la v2.2.21, cuando el módulo mod_setenvif está activado, no limita el tamaño de los valores de las variables de entorno, lo que permite a usuarios locales causar una denegación de servicio (consumo de memoria o puntero a NULL) a través de un archivo de tipo .htaccess que incluye una directiva SetEnvIf modificada, junto con un encabezado de solicitud HTTP manipulado, relacionado con (1) la declarción "len + =" y (2) con la llamada a la funcion apr_pcalloc, una vulnerabilidad diferente a CVE-2011-3607.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2011-11-02 First Exploit
- 2011-11-08 CVE Reserved
- 2011-11-08 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-07 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-20: Improper Input Validation
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| http://www.gossamer-threads.com/lists/apache/dev/403775 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 | 2012-07-03 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0 Search vendor "Apache" for product "Http Server" and version "2.0" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.9 Search vendor "Apache" for product "Http Server" and version "2.0.9" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.28 Search vendor "Apache" for product "Http Server" and version "2.0.28" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.28 Search vendor "Apache" for product "Http Server" and version "2.0.28" | beta |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.32 Search vendor "Apache" for product "Http Server" and version "2.0.32" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.32 Search vendor "Apache" for product "Http Server" and version "2.0.32" | beta |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.34 Search vendor "Apache" for product "Http Server" and version "2.0.34" | beta |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.35 Search vendor "Apache" for product "Http Server" and version "2.0.35" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.36 Search vendor "Apache" for product "Http Server" and version "2.0.36" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.37 Search vendor "Apache" for product "Http Server" and version "2.0.37" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.38 Search vendor "Apache" for product "Http Server" and version "2.0.38" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.39 Search vendor "Apache" for product "Http Server" and version "2.0.39" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.40 Search vendor "Apache" for product "Http Server" and version "2.0.40" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.41 Search vendor "Apache" for product "Http Server" and version "2.0.41" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.42 Search vendor "Apache" for product "Http Server" and version "2.0.42" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.43 Search vendor "Apache" for product "Http Server" and version "2.0.43" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.44 Search vendor "Apache" for product "Http Server" and version "2.0.44" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.45 Search vendor "Apache" for product "Http Server" and version "2.0.45" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.46 Search vendor "Apache" for product "Http Server" and version "2.0.46" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.47 Search vendor "Apache" for product "Http Server" and version "2.0.47" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.48 Search vendor "Apache" for product "Http Server" and version "2.0.48" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.49 Search vendor "Apache" for product "Http Server" and version "2.0.49" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.50 Search vendor "Apache" for product "Http Server" and version "2.0.50" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.51 Search vendor "Apache" for product "Http Server" and version "2.0.51" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.52 Search vendor "Apache" for product "Http Server" and version "2.0.52" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.53 Search vendor "Apache" for product "Http Server" and version "2.0.53" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.54 Search vendor "Apache" for product "Http Server" and version "2.0.54" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.55 Search vendor "Apache" for product "Http Server" and version "2.0.55" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.56 Search vendor "Apache" for product "Http Server" and version "2.0.56" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.57 Search vendor "Apache" for product "Http Server" and version "2.0.57" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.58 Search vendor "Apache" for product "Http Server" and version "2.0.58" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.59 Search vendor "Apache" for product "Http Server" and version "2.0.59" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.60 Search vendor "Apache" for product "Http Server" and version "2.0.60" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.61 Search vendor "Apache" for product "Http Server" and version "2.0.61" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.63 Search vendor "Apache" for product "Http Server" and version "2.0.63" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.0.64 Search vendor "Apache" for product "Http Server" and version "2.0.64" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.0 Search vendor "Apache" for product "Http Server" and version "2.2.0" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.1 Search vendor "Apache" for product "Http Server" and version "2.2.1" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.2 Search vendor "Apache" for product "Http Server" and version "2.2.2" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.3 Search vendor "Apache" for product "Http Server" and version "2.2.3" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.4 Search vendor "Apache" for product "Http Server" and version "2.2.4" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.6 Search vendor "Apache" for product "Http Server" and version "2.2.6" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.8 Search vendor "Apache" for product "Http Server" and version "2.2.8" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.9 Search vendor "Apache" for product "Http Server" and version "2.2.9" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.10 Search vendor "Apache" for product "Http Server" and version "2.2.10" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.11 Search vendor "Apache" for product "Http Server" and version "2.2.11" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.12 Search vendor "Apache" for product "Http Server" and version "2.2.12" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.13 Search vendor "Apache" for product "Http Server" and version "2.2.13" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.14 Search vendor "Apache" for product "Http Server" and version "2.2.14" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.15 Search vendor "Apache" for product "Http Server" and version "2.2.15" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.16 Search vendor "Apache" for product "Http Server" and version "2.2.16" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.18 Search vendor "Apache" for product "Http Server" and version "2.2.18" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.19 Search vendor "Apache" for product "Http Server" and version "2.2.19" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.20 Search vendor "Apache" for product "Http Server" and version "2.2.20" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | 2.2.21 Search vendor "Apache" for product "Http Server" and version "2.2.21" | - |
Affected
| ||||||