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CVE-2009-3111

The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of...

5.0 MediumPublic exploitFix available

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.

Exploit likelihood

11.2%Down 1.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

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.

Record
CVE-2009-3111
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2009-3111
Updated
2026-11-02
EUVDEUVD-2009-3094 No score

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.

Record
EUVD-2009-3094
Updated
2026-11-03
GitHub AdvisoriesGHSA-q2fp-fcx5-hff3 No score

The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of...

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.

Record
GHSA-q2fp-fcx5-hff3
Updated
2026-11-02
OSV No score

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.

Record
CVE-2009-3111
Updated
2026-11-02
OSVDEBIAN-CVE-2009-3111 No score

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.

Record
DEBIAN-CVE-2009-3111
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
freeradius
Debian:12
 before 2.0.0-1
2.0.0-1
freeradius
Debian:13
 before 2.0.0-1
2.0.0-1
freeradius
Debian:14
 before 2.0.0-1
2.0.0-1
freeradius
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-debuginfo
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-mysql
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-postgresql
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-unixODBC
Red Hat:enterprise_linux:5::client_workstation
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius
Red Hat:enterprise_linux:5::server
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-mysql
Red Hat:enterprise_linux:5::server
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-postgresql
Red Hat:enterprise_linux:5::server
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4
freeradius-unixODBC
Red Hat:enterprise_linux:5::server
 before 0:1.1.3-1.5.el5_4
0:1.1.3-1.5.el5_4

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBFreeRadius < 1.1.8 - Zero-Length Tunnel-Password Denial of Service2009-09-11

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-3111 is a medium vulnerability (CVSS 5.0) in Freeradius, published September 9, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.2%, the 95th percentile. Fixed in freeradius 2.0.0-1.

References

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