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TI-2009-02966 Aliases CVE-2009-3111GHSA-q2fp-fcx5-hff3

The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a…

Priority LOW 36Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

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.

Why it matters now

EPSS 0.11176 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 21

CPEVersionsRoleVendor
cpe:2.3:a:freeradius:freeradius:*:*:*:*:*:*:*:*up to 1.1.7Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.2:*:*:*:*:*:*:*0.2Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.3:*:*:*:*:*:*:*0.3Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.4:*:*:*:*:*:*:*0.4Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.5:*:*:*:*:*:*:*0.5Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.8:*:*:*:*:*:*:*0.8Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.8.1:*:*:*:*:*:*:*0.8.1Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.9:*:*:*:*:*:*:*0.9Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.9.1:*:*:*:*:*:*:*0.9.1Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:0.9.2:*:*:*:*:*:*:*0.9.2Vulnerablefreeradius
  • cpe:2.3:a:freeradius:freeradius:*:*:*:*:*:*:*:* Versions up to 1.1.7 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.8.1:*:*:*:*:*:*:* Versions 0.8.1 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.9:*:*:*:*:*:*:* Versions 0.9 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.9.1:*:*:*:*:*:*:* Versions 0.9.1 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:0.9.2:*:*:*:*:*:*:* Versions 0.9.2 Vulnerable ·freeradius
Show 11 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:freeradius:freeradius:0.9.3:*:*:*:*:*:*:*0.9.3Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.0:*:*:*:*:*:*:*1.0.0Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.1:*:*:*:*:*:*:*1.0.1Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.2:*:*:*:*:*:*:*1.0.2Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.3:*:*:*:*:*:*:*1.0.3Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.4:*:*:*:*:*:*:*1.0.4Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.0.5:*:*:*:*:*:*:*1.0.5Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.1.0:*:*:*:*:*:*:*1.1.0Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.1.3:*:*:*:*:*:*:*1.1.3Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.1.5:*:*:*:*:*:*:*1.1.5Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:1.1.6:*:*:*:*:*:*:*1.1.6Vulnerablefreeradius
  • cpe:2.3:a:freeradius:freeradius:0.9.3:*:*:*:*:*:*:* Versions 0.9.3 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.3:*:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.4:*:*:*:*:*:*:* Versions 1.0.4 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.0.5:*:*:*:*:*:*:* Versions 1.0.5 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.1.5:*:*:*:*:*:*:* Versions 1.1.5 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:1.1.6:*:*:*:*:*:*:* Versions 1.1.6 Vulnerable ·freeradius

Remediation

Red Hat 1 advisory

  • RHSA-2009:1451 Released 2009-09-17 · Red Hat rating Moderate
    freeradius security update
    • Red Hat Enterprise Linux (v. 5 server) freeradius-1.1.3-1.5.el5_4, freeradius-1.1.3-1.5.el5_4.i386, freeradius-1.1.3-1.5.el5_4.ia64 +13
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) freeradius-1.1.3-1.5.el5_4, freeradius-1.1.3-1.5.el5_4.i386, freeradius-mysql-1.1.3-1.5.el5_4 +5

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:1451
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2009:1451

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-3111
  2. 2026-10-03 Alias added: GHSA-q2fp-fcx5-hff3

References

Patch 2

Advisory 4

Other 5

  • TI-2019-07466 Race condition in freeradius CVSS 3.1HIGH 7.0
  • TI-2024-03351 RADIUS Protocol under RFC2865 is vulnerable to forgery attacks. CVSS 3.1CRITICAL 9.0
  • TI-2019-08409 FreeRADIUS before 3.0.19 does not prevent use of reflection for authentication spoofing… CVSS 3.0CRITICAL 9.8
  • TI-2017-08061 An FR-GV-202 issue in FreeRADIUS 2.x before 2.2.10 allows "Write overflow in… CVSS 3.0CRITICAL 9.8
  • TI-2017-08066 An FR-GV-301 issue in FreeRADIUS 3.x before 3.0.15 allows "Write overflow in… CVSS 3.0CRITICAL 9.8
  • TI-2017-06599 The TLS session cache in FreeRADIUS 2.1.1 through 2.1.7, 3.0.x before 3.0.14, 3.1.x… CVSS 3.0CRITICAL 9.8
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences