| Name | CVE-2015-5314 |
| Description | The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3397-1 |
| Debian Bugs | 804708 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| wpa (PTS) | buster, buster (security) | 2:2.7+git20190128+0c1e29f-6+deb10u3 | fixed |
| bullseye | 2:2.9.0-21 | fixed |
| bookworm | 2:2.10-12 | fixed |
| sid, trixie | 2:2.10-15 | fixed |
The information below is based on the following data on fixed versions.
Notes
[wheezy] - wpa <not-affected> (v2.0-v2.5 with CONFIG_EAP_PWD=y)
- wpasupplicant <not-affected> (v2.0-v2.5 with CONFIG_EAP_PWD=y)
- hostapd <not-affected> (v2.0-v2.5 with CONFIG_EAP_PWD=y)
http://w1.fi/security/2015-7/
https://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
https://w1.fi/security/2015-7/0001-EAP-pwd-server-Fix-last-fragment-length-validation.patch