Multiband Atheros Driver for WiFi (MADWIFI) giwscan_cb() and encode_ie() buffer overflow
| madwifi-giwscan-encode-bo (30800) |  High Risk |
Description:
Multiband Atheros Driver for WiFi (MADWIFI) is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the giwscan_cb() and encode_ie() functions when handling a malicious beacon request or frames with an invalid supported-rates information element. By sending a specially-crafted 802.11 management frame to a vulnerable system, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the system to crash, if the attacker is in range of the affected device.
*CVSS:
| Base Score: | 8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 6.6 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Multiband Atheros Driver for WiFi (MADWIFI) (0.9.2.1 or later), available from the MADwiFi News Web site. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200612-09 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-404-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Full-Disclosure Mailing List, Fri Dec 08 2006 - 13:08:48 CST: [Madwifi] Madwifi SIOCGIWSCAN buffer overflow // France Telecom.
- MADwiFi News 20061207: Release 0.9.2.1 fixes critical security issue.
- SourceForge.net: MADWIFI.
- BID-21486: MADWiFi Linux Kernel Device Driver Multiple Remote Buffer Overflow Vulnerabilities
- CVE-2006-6332: Stack-based buffer overflow in net80211/ieee80211_wireless.c in MadWifi before 0.9.2.1 allows remote attackers to execute arbitrary code via unspecified vectors, related to the encode_ie and giwscan_cb functions.
- GLSA-200612-09: MadWifi: Kernel driver buffer overflow
- SA23277: MadWifi Buffer Overflow Vulnerability
- SUSE-SA:2006:074: gpg stack corruption problem
- SUSE-SR:2006:028: SUSE Security Summary Report
- US-CERT VU#925529: Madwifi wireless driver buffer overflow vulnerability
- USN-404-1: MadWifi vulnerability
- VUPEN/ADV-2006-4901: Madwifi Driver giwscan_cb() and encode_ie() Remote Buffer Overflow Vulnerability
Platforms Affected:
- Canonical Ubuntu 6.10
- Gentoo Linux
- Madwifi Driver Madwifi Driver 0.9.2 and prior
- Novell OpenSUSE 10.2
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 9.3
- SuSE SuSE SLED 10
Reported:
Dec 07, 2006
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For corrections or additions please email xforce@iss.net
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.