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CVE-2009-1959

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Date: June 6, 2009

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.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2009-1959
http://www.securitytracker.com/id?1022410
http://secunia.com/advisories/35812
http://www.irssi.org/ChangeLog
https://www.mend.io/vulnerability-database/CVE-2009-1959

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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