Description
The wait_for_child_to_die function in main/event.c in FreeRADIUS 2.1.x before 2.1.10, in certain circumstances involving long-term database outages, does not properly handle long queue times for requests, which allows remote attackers to cause a denial of service (daemon crash) by sending many requests.
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 14 | freeradius | 2.1.10+dfsg-1 | — |
| Debian 13 | freeradius | 2.1.10+dfsg-1 | — |
| Debian 12 | freeradius | 2.1.10+dfsg-1 | — |
References
- 41621 third-party-advisory
- http://github.com/alandekok/freeradius-server/commit/ff94dd35673bba1476594299d31ce8293b8bd223
- https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=35
- [oss-security] 20101001 CVE request: freeradius mailing-list
- http://freeradius.org/press/index.html#2.1.10
- https://bugzilla.redhat.com/show_bug.cgi?id=639397
- [oss-security] 20101001 Re: CVE request: freeradius mailing-list