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TI-2012-03072 Aliases CVE-2012-3547GHSA-rv5x-2jxm-gf9c

Stack-based buffer overflow in the cbtls_verify function in FreeRADIUS 2.1.10 through…

Priority LOW 39CWE-119Published · Updated

Key facts

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

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Stack-based buffer overflow in the cbtls_verify function in FreeRADIUS 2.1.10 through 2.1.12, when using TLS-based EAP methods, allows remote attackers to cause a denial of service (server crash) and possibly execute arbitrary code via a long "not after" timestamp in a client certificate.

Why it matters now

EPSS 0.05698 93rd percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

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 · 3

CPEVersionsRoleVendor
cpe:2.3:a:freeradius:freeradius:2.1.10:*:*:*:*:*:*:*2.1.10Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:2.1.11:*:*:*:*:*:*:*2.1.11Vulnerablefreeradius
cpe:2.3:a:freeradius:freeradius:2.1.12:*:*:*:*:*:*:*2.1.12Vulnerablefreeradius
  • cpe:2.3:a:freeradius:freeradius:2.1.10:*:*:*:*:*:*:* Versions 2.1.10 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:2.1.11:*:*:*:*:*:*:* Versions 2.1.11 Vulnerable ·freeradius
  • cpe:2.3:a:freeradius:freeradius:2.1.12:*:*:*:*:*:*:* Versions 2.1.12 Vulnerable ·freeradius

Remediation

Red Hat 2 advisories

  • RHSA-2012:1326 Released 2012-10-02 · Red Hat rating Moderate
    freeradius security update
    • Red Hat Enterprise Linux Server (v. 6) freeradius-2.1.12-4.el6_3
    • Red Hat Enterprise Linux Server Optional (v. 6) freeradius-2.1.12-4.el6_3, freeradius-krb5-2.1.12-4.el6_3, freeradius-ldap-2.1.12-4.el6_3 +6
    • Red Hat Enterprise Linux Workstation (v. 6) freeradius-2.1.12-4.el6_3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) freeradius-2.1.12-4.el6_3, freeradius-krb5-2.1.12-4.el6_3, freeradius-ldap-2.1.12-4.el6_3 +6
  • RHSA-2012:1327 Released 2012-10-02 · Red Hat rating Moderate
    freeradius2 security update
    • RHEL Desktop Workstation (v. 5 client) freeradius2-2.1.12-4.el5_8, freeradius2-2.1.12-4.el5_8.i386, freeradius2-krb5-2.1.12-4.el5_8 +15
    • Red Hat Enterprise Linux (v. 5 server) freeradius2-2.1.12-4.el5_8, freeradius2-2.1.12-4.el5_8.i386, freeradius2-2.1.12-4.el5_8.ia64 +33

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
RHEL Desktop Workstation (v. 5 client)Fixed RHSA-2012:1327
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2012:1327
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:1326
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2012:1326
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:1326
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2012:1326
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-3547
  2. 2026-10-03 Alias added: GHSA-rv5x-2jxm-gf9c

References

Advisory 9

Other 4

  • 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