CVE-2009-3111 json
The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of service (radiusd crash) via zero-length Tun…
published 2009-09-09 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3094
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 11.2%
- EPSS 11.2% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB
Summary
The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of service (radiusd crash) via zero-length Tunnel-Password attributes, as demonstrated by a certain module in VulnDisco Pack Professional 7.6 through 8.11. NOTE: this is a regression error related to CVE-2003-0967.
Patch / fix
- freeradius Debian 14, Debian 13, Debian 12 2.0.0-1
debian advisories DEBIAN-CVE-2009-3111
- freeradius RHEL 5 1.1.3-1.5.el5_4
- freeradius-mysql RHEL 5 1.1.3-1.5.el5_4
- freeradius-unixODBC RHEL 5 1.1.3-1.5.el5_4
- freeradius-postgresql RHEL 5 1.1.3-1.5.el5_4
red hat advisories RHSA-2009:1451
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2009-3111 updated cvss 5.0
FreeRADIUS: Missing check for Tunnel-Password attributes with zero length (DoS) -- re-appearance of CVE-2003-0967
-
Red Hat Enterprise Linux (v. 5 server) freeradius 1.1.3-1.5.el5_4, freeradius-mysql 1.1.3-1.5.el5_4, freeradius-unixODBC 1.1.3-1.5.el5_4, freeradius-postgresql 1.1.3-1.5.el5_4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) freeradius 1.1.3-1.5.el5_4, freeradius-mysql 1.1.3-1.5.el5_4, freeradius-unixODBC 1.1.3-1.5.el5_4, freeradius-postgresql 1.1.3-1.5.el5_4fixed: vendor fix RHSA-2009:1451
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Timeline
- Published
- First public exploit (EDB-9642)
Exploit prediction
11.18% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-9642 FreeRadius < 1.1.8 - Zero-Length Tunnel-Password Denial of Service dos, 2009-09-11
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
github.com
/alandekok/freeradius-server/commit/860cad9e02ba344edb0038419e415fe05a9a01f4
patch
-
openwall.com
/lists/oss-security/2009/09/09/1
mailing-list, patch
-
lists.opensuse.org
/opensuse-security-announce/2009-11/msg00004.html
vendor-advisory
-
lists.opensuse.org
/opensuse-security-announce/2009-10/msg00001.html
vendor-advisory
-
lists.apple.com
/archives/security-announce/2009/Nov/msg00000.html
vendor-advisory
-
redhat.com
/support/errata/RHSA-2009-1451.html
vendor-advisory
-
securityfocus.com
/bid/36263
vdb-entry
-
lists.freeradius.org
/pipermail/freeradius-users/2009-September/msg00242.html
mailing-list
-
secunia.com
/advisories/36509
third-party-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9919
vdb-entry, signature
- intevydis.com /vd-list.shtml
-
vupen.com
/english/advisories/2009/3184
vdb-entry
- support.apple.com /kb/HT3937
Sources
- CVE List CVE-2009-3111
- NVD CVE-2009-3111
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.