CVE-2009-1959
Irssi 0.8.13 - 'WALLOPS' Message Off-by-One Heap Memory Corruption
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
4
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Off-by-one error in the event_wallops function in fe-common/irc/fe-events.c in irssi 0.8.13 allows remote IRC servers to cause a denial of service (crash) via an empty command, which triggers a one-byte buffer under-read and a one-byte buffer underflow.
Error de superación de límite (Off-by-one) en loa función event_wallops en fe-common/irc/fe-events.c en irssi v0.8.13, permite a los servidores de IRC remotos provocar una denegación de servicio (caída) a través de un comando vacío, lo que lanza un lectura de búfer por debajo de un byte (one-byte) o por el desbordamiento de búfer inferior de un byte (one-byte).
*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
- 2009-05-15 First Exploit
- 2009-06-06 CVE Reserved
- 2009-06-06 CVE Published
- 2024-08-07 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-189: Numeric Errors
CAPEC
References (16)
| URL | Tag | Source |
|---|---|---|
| http://secunia.com/advisories/35685 | Third Party Advisory | |
| http://secunia.com/advisories/35812 | Third Party Advisory | |
| http://secunia.com/advisories/36152 | Third Party Advisory | |
| http://www.openwall.com/lists/oss-security/2009/05/29/3 | Mailing List |
|
| http://www.securityfocus.com/bid/35399 | Vdb Entry | |
| http://www.securitytracker.com/id?1022410 | Vdb Entry | |
| http://www.vupen.com/english/advisories/2009/1596 | Vdb Entry | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/51184 | Vdb Entry |
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/33041 | 2009-05-15 | |
| http://bugs.irssi.org/index.php?do=details&task_id=662 | 2024-08-07 | |
| http://www.irssi.org/ChangeLog | 2024-08-07 | |
| http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite | 2024-08-07 |
| URL | Date | SRC |
|---|