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Fencer Intel
critical 9.8

CVE-2017-10979 json

An FR-GV-202 issue in FreeRADIUS 2.x before 2.2.10 allows "Write overflow in rad_coalesce()" - this allows remote attackers to cause a deni…

published 2017-07-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-2617

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.0%
EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

An FR-GV-202 issue in FreeRADIUS 2.x before 2.2.10 allows "Write overflow in rad_coalesce()" - this allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code.

Patch / fix

  • freeradius Debian 14, Debian 13, Debian 12 3.0.12+dfsg-3

debian advisories DEBIAN-CVE-2017-10979

  • freeradius Ubuntu 14.04 LTS 2.1.12+dfsg-1.2ubuntu8.2
  • freeradius Ubuntu 16.04 LTS 2.2.8+dfsg-0.1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2017-10979

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freeradius RHEL 6 2.2.6-7.el6_9
  • freeradius-krb5 RHEL 6 2.2.6-7.el6_9
  • freeradius-ldap RHEL 6 2.2.6-7.el6_9
  • freeradius-perl RHEL 6 2.2.6-7.el6_9
  • freeradius-mysql RHEL 6 2.2.6-7.el6_9
  • freeradius-utils RHEL 6 2.2.6-7.el6_9
  • freeradius-python RHEL 6 2.2.6-7.el6_9
  • freeradius-unixODBC RHEL 6 2.2.6-7.el6_9

red hat advisories RHSA-2017:1759

  • freeradius-server SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 2.1.1-7.25.3.1

suse advisories SUSE-SU-2017:2244-1

  • freeradius Arch Linux 2.2.9-1

arch linux advisories AVG-934

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-2017-10979 updated cvss 8.1

freeradius: Out-of-bounds write in rad_coalesce()

  • Red Hat Enterprise Linux 5 freeradius, freeradius2
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Server (v. 6) freeradius 2.2.6-7.el6_9 Red Hat Enterprise Linux Server Optional (v. 6) freeradius-krb5 2.2.6-7.el6_9, freeradius-ldap 2.2.6-7.el6_9, freeradius-perl 2.2.6-7.el6_9, freeradius-mysql 2.2.6-7.el6_9, freeradius-utils 2.2.6-7.el6_9, freeradius-python 2.2.6-7.el6_9, +2 more Red Hat Enterprise Linux Workstation (v. 6) freeradius 2.2.6-7.el6_9 Red Hat Enterprise Linux Workstation Optional (v. 6) freeradius-krb5 2.2.6-7.el6_9, freeradius-ldap 2.2.6-7.el6_9, freeradius-perl 2.2.6-7.el6_9, freeradius-mysql 2.2.6-7.el6_9, freeradius-utils 2.2.6-7.el6_9, freeradius-python 2.2.6-7.el6_9, +2 more
    fixed: vendor fix RHSA-2017:1759
  • Red Hat Enterprise Linux 7 freeradius, freeradius-krb5, freeradius-ldap, freeradius-perl, freeradius-mysql, freeradius-utils, +4 more
    not affected: vulnerable code not present

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

7.04% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel 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.