ieee80211_input.c in MadWifi before 0.9.3 does not properly process Channel Switch Announcement Information Elements (CSA IEs), which allows remote attackers to cause a denial of service (loss of communication) via a Channel Switch Count less than or equal to one, triggering a channel change.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Madwifi | Madwifi | * | 0.9.2 (including) |
| Madwifi | Madwifi | * | 0.9.2.1 (including) |
| Linux-restricted-modules-2.6.17 | Ubuntu | edgy | * |
| Linux-restricted-modules-2.6.20 | Ubuntu | feisty | * |
References
- http://dev.lintrack.org/ticket/101
- http://madwifi.org/ticket/963
- http://madwifi.org/wiki/Releases/0.9.3
- http://secunia.com/advisories/24670
- http://secunia.com/advisories/24841
- http://secunia.com/advisories/24931
- http://secunia.com/advisories/25861
- http://secunia.com/advisories/26083
- http://security.gentoo.org/glsa/glsa-200704-15.xml
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:082
- http://www.novell.com/linux/security/advisories/2007_14_sr.html
- http://www.osvdb.org/34645
- http://www.securityfocus.com/archive/1/466689/30/6900/threaded
- http://www.securityfocus.com/bid/23436
- http://www.ubuntu.com/usn/usn-479-1
- http://www.vupen.com/english/advisories/2007/1187
- http://dev.lintrack.org/ticket/101
- http://madwifi.org/ticket/963
- http://madwifi.org/wiki/Releases/0.9.3
- http://secunia.com/advisories/24670
- http://secunia.com/advisories/24841
- http://secunia.com/advisories/24931
- http://secunia.com/advisories/25861
- http://secunia.com/advisories/26083
- http://security.gentoo.org/glsa/glsa-200704-15.xml
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:082
- http://www.novell.com/linux/security/advisories/2007_14_sr.html
- http://www.osvdb.org/34645
- http://www.securityfocus.com/archive/1/466689/30/6900/threaded
- http://www.securityfocus.com/bid/23436
- http://www.ubuntu.com/usn/usn-479-1
- http://www.vupen.com/english/advisories/2007/1187