| Name | CVE-2019-17185 |
| Description | In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| freeradius (PTS) | stretch (security), stretch | 3.0.12+dfsg-5+deb9u1 | vulnerable |
| buster | 3.0.17+dfsg-1.1 | vulnerable | |
| bullseye | 3.0.21+dfsg-2.2+deb11u1 | fixed | |
| bookworm, sid | 3.2.0+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| freeradius | source | jessie | (not affected) | |||
| freeradius | source | (unstable) | 3.0.20+dfsg-1 |
[buster] - freeradius <no-dsa> (Minor issue)
[stretch] - freeradius <no-dsa> (Minor issue)
[jessie] - freeradius <not-affected> (Vulnerable code not present; EAP-pwd module introduced in later version)
https://github.com/FreeRADIUS/freeradius-server/commit/6b522f8780813726799e6b8cf0f1f8e0ce2c8ebf