CVE-2009-1959

Irssi 0.8.13 - 'WALLOPS' Message Off-by-One Heap Memory Corruption

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*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

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

2009-05-15 First Exploit
2009-06-06 CVE Reserved
2009-06-06 CVE Published
2024-08-07 CVE Updated
2024-11-09 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

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html	2017-08-17
http://www.mandriva.com/security/advisories?name=MDVSA-2009:133	2017-08-17
http://www.ubuntu.com/usn/usn-800-1	2017-08-17
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html	2017-08-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Irssi Search vendor "Irssi"		Irssi Search vendor "Irssi" for product "Irssi"				0.8.13 Search vendor "Irssi" for product "Irssi" and version "0.8.13"		-		Affected