CVE-2011-2943
Severity Score
6.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted nickname that is not properly handled in a WHO response.
La función irc_msg_who en msgs.c en el plugin del protocolo IRC en libpurple v2.8.0 hasta v2.9.0 en Pidgin anterior a v2.10.0 no valida adecuadamente caracteres en nombres de usuario, lo que permite a atacantes remotos asistidos por el usuario provocar una denegación de servicio (desreferenciar un puntero NULL y caída de la aplicación) a través del nombre de usuario que no se maneja adecuadamente en una respuesta WHO.
*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
- 2011-07-27 CVE Reserved
- 2011-08-29 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| http://secunia.com/advisories/45916 | Third Party Advisory | |
| http://securitytracker.com/id?1025961 | Vdb Entry | |
| http://www.openwall.com/lists/oss-security/2011/08/20/2 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2011/08/22/2 | Mailing List |
|
| http://www.securityfocus.com/bid/49268 | Vdb Entry | |
| https://bugzilla.redhat.com/show_bug.cgi?id=722939 | X_refsource_confirm | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/69340 | Vdb Entry | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005 | Signature |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://secunia.com/advisories/45663 | 2017-09-19 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Pidgin Search vendor "Pidgin" | Libpurple Search vendor "Pidgin" for product "Libpurple" | 2.8.0 Search vendor "Pidgin" for product "Libpurple" and version "2.8.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Libpurple Search vendor "Pidgin" for product "Libpurple" | 2.9.0 Search vendor "Pidgin" for product "Libpurple" and version "2.9.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | <= 2.9.0 Search vendor "Pidgin" for product "Pidgin" and version " <= 2.9.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.0.0 Search vendor "Pidgin" for product "Pidgin" and version "2.0.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.0.1 Search vendor "Pidgin" for product "Pidgin" and version "2.0.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.0.2 Search vendor "Pidgin" for product "Pidgin" and version "2.0.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.1.0 Search vendor "Pidgin" for product "Pidgin" and version "2.1.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.1.1 Search vendor "Pidgin" for product "Pidgin" and version "2.1.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.2.0 Search vendor "Pidgin" for product "Pidgin" and version "2.2.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.2.1 Search vendor "Pidgin" for product "Pidgin" and version "2.2.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.2.2 Search vendor "Pidgin" for product "Pidgin" and version "2.2.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.3.0 Search vendor "Pidgin" for product "Pidgin" and version "2.3.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.3.1 Search vendor "Pidgin" for product "Pidgin" and version "2.3.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.4.0 Search vendor "Pidgin" for product "Pidgin" and version "2.4.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.4.1 Search vendor "Pidgin" for product "Pidgin" and version "2.4.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.4.2 Search vendor "Pidgin" for product "Pidgin" and version "2.4.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.4.3 Search vendor "Pidgin" for product "Pidgin" and version "2.4.3" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.0 Search vendor "Pidgin" for product "Pidgin" and version "2.5.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.1 Search vendor "Pidgin" for product "Pidgin" and version "2.5.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.2 Search vendor "Pidgin" for product "Pidgin" and version "2.5.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.3 Search vendor "Pidgin" for product "Pidgin" and version "2.5.3" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.4 Search vendor "Pidgin" for product "Pidgin" and version "2.5.4" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.5 Search vendor "Pidgin" for product "Pidgin" and version "2.5.5" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.6 Search vendor "Pidgin" for product "Pidgin" and version "2.5.6" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.7 Search vendor "Pidgin" for product "Pidgin" and version "2.5.7" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.8 Search vendor "Pidgin" for product "Pidgin" and version "2.5.8" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.5.9 Search vendor "Pidgin" for product "Pidgin" and version "2.5.9" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.0 Search vendor "Pidgin" for product "Pidgin" and version "2.6.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.1 Search vendor "Pidgin" for product "Pidgin" and version "2.6.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.2 Search vendor "Pidgin" for product "Pidgin" and version "2.6.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.4 Search vendor "Pidgin" for product "Pidgin" and version "2.6.4" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.5 Search vendor "Pidgin" for product "Pidgin" and version "2.6.5" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.6.6 Search vendor "Pidgin" for product "Pidgin" and version "2.6.6" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.0 Search vendor "Pidgin" for product "Pidgin" and version "2.7.0" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.1 Search vendor "Pidgin" for product "Pidgin" and version "2.7.1" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.2 Search vendor "Pidgin" for product "Pidgin" and version "2.7.2" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.3 Search vendor "Pidgin" for product "Pidgin" and version "2.7.3" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.4 Search vendor "Pidgin" for product "Pidgin" and version "2.7.4" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.5 Search vendor "Pidgin" for product "Pidgin" and version "2.7.5" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.6 Search vendor "Pidgin" for product "Pidgin" and version "2.7.6" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.7 Search vendor "Pidgin" for product "Pidgin" and version "2.7.7" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.8 Search vendor "Pidgin" for product "Pidgin" and version "2.7.8" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.9 Search vendor "Pidgin" for product "Pidgin" and version "2.7.9" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.10 Search vendor "Pidgin" for product "Pidgin" and version "2.7.10" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.7.11 Search vendor "Pidgin" for product "Pidgin" and version "2.7.11" | - |
Affected
| ||||||
| Pidgin Search vendor "Pidgin" | Pidgin Search vendor "Pidgin" for product "Pidgin" | 2.8.0 Search vendor "Pidgin" for product "Pidgin" and version "2.8.0" | - |
Affected
| ||||||