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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Irssi | Irssi | 0.8.13 (including) | 0.8.13 (including) |
| Irssi | Ubuntu | dapper | * |
| Irssi | Ubuntu | hardy | * |
| Irssi | Ubuntu | intrepid | * |
| Irssi | Ubuntu | jaunty | * |
| Irssi | Ubuntu | upstream | * |
References
- http://bugs.irssi.org/index.php?do=details\u0026task_id=662
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://secunia.com/advisories/35685
- http://secunia.com/advisories/35812
- http://secunia.com/advisories/36152
- http://www.irssi.org/ChangeLog
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:133
- http://www.openwall.com/lists/oss-security/2009/05/29/3
- http://www.securityfocus.com/bid/35399
- http://www.securitytracker.com/id?1022410
- http://www.ubuntu.com/usn/usn-800-1
- http://www.vupen.com/english/advisories/2009/1596
- http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51184
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html
- http://bugs.irssi.org/index.php?do=details\u0026task_id=662
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://secunia.com/advisories/35685
- http://secunia.com/advisories/35812
- http://secunia.com/advisories/36152
- http://www.irssi.org/ChangeLog
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:133
- http://www.openwall.com/lists/oss-security/2009/05/29/3
- http://www.securityfocus.com/bid/35399
- http://www.securitytracker.com/id?1022410
- http://www.ubuntu.com/usn/usn-800-1
- http://www.vupen.com/english/advisories/2009/1596
- http://xorl.wordpress.com/2009/05/28/irssi-event_wallops-off-by-one-readwrite/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51184
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00146.html