Description
Hostapd 0.3.7-2 allows remote attackers to cause a denial of service (segmentation fault) via an unspecified value in the key_data_length field of an EAPoL frame.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | hostapd | 1:0.3.7-2sarge1 | DSA-1065-1 |
Advisories 1
- DSA-1065-1 hostapd - missing input sanitising Debian Security (DSA / DLA) · Mar 9, 2026
References
- MDKSA-2006:088 vendor-advisory
- 20265 third-party-advisory
- 19966 third-party-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=365897
- 17846 vdb-entry
- hostapd-eapol-dos(26239) vdb-entry
- 20195 third-party-advisory
- ADV-2006-1657 vdb-entry
- 25233 vdb-entry
- DSA-1065 vendor-advisory