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Fencer Vulns
medium 5.0

CVE-2007-2028 json

Memory leak in freeRADIUS 1.1.5 and earlier allows remote attackers to cause a denial of service (memory consumption) via a large number of…

published 2007-04-13 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-2023

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Memory leak in freeRADIUS 1.1.5 and earlier allows remote attackers to cause a denial of service (memory consumption) via a large number of EAP-TTLS tunnel connections using malformed Diameter format attributes, which causes the authentication request to be rejected but does not reclaim VALUE_PAIR data structures.

Patch / fix

  • freeradius Debian 14, Debian 13, Debian 12 1.1.6-1

debian advisories DEBIAN-CVE-2007-2028

  • freeradius RHEL 3 1.0.1-2.RHEL3.4
  • freeradius RHEL 4 1.0.1-3.RHEL4.5
  • freeradius RHEL 5 1.1.3-1.2.el5
  • freeradius-mysql RHEL 4 1.0.1-3.RHEL4.5
  • freeradius-mysql RHEL 5 1.1.3-1.2.el5
  • freeradius-unixODBC RHEL 4 1.0.1-3.RHEL4.5
  • freeradius-unixODBC RHEL 5 1.1.3-1.2.el5
  • freeradius-postgresql RHEL 4 1.0.1-3.RHEL4.5

red hat advisories RHSA-2007:0338

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-2007-2028 updated

security flaw

  • Red Hat Enterprise Linux (v. 5 server) freeradius 1.1.3-1.2.el5, freeradius-mysql 1.1.3-1.2.el5, freeradius-unixODBC 1.1.3-1.2.el5, freeradius-postgresql 1.1.3-1.2.el5 Red Hat Enterprise Linux AS version 3 freeradius 1.0.1-2.RHEL3.4 Red Hat Enterprise Linux AS version 4 freeradius 1.0.1-3.RHEL4.5, freeradius-mysql 1.0.1-3.RHEL4.5, freeradius-unixODBC 1.0.1-3.RHEL4.5, freeradius-postgresql 1.0.1-3.RHEL4.5 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) freeradius 1.1.3-1.2.el5, freeradius-mysql 1.1.3-1.2.el5, freeradius-unixODBC 1.1.3-1.2.el5, freeradius-postgresql 1.1.3-1.2.el5 Red Hat Enterprise Linux ES version 3 freeradius 1.0.1-2.RHEL3.4 Red Hat Enterprise Linux ES version 4 freeradius 1.0.1-3.RHEL4.5, freeradius-mysql 1.0.1-3.RHEL4.5, freeradius-unixODBC 1.0.1-3.RHEL4.5, freeradius-postgresql 1.0.1-3.RHEL4.5
    fixed: vendor fix RHSA-2007:0338

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

Exploit prediction

2.48% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

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

Sources

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.