CVE-2011-2701
First published: Thu Jul 21 2011(Updated: )
DFN-CERT reported [1] a vulnerability in the OCSP feature in FreeRADIUS 2.1.11 where it does not verify the status of a certificate (e.g. if the certificate was revoked). No further details, or a patch, were provided. According to the changelog on the FreeRADIUS site [2], OCSP support was added in version 2.1.11: * OCSP support from Alex Bergmann. See raddb/eap.conf, "ocsp" section. Therefore earlier versions of FreeRADIUS are not affected by this flaw. [1] <a href="http://seclists.org/oss-sec/2011/q3/105">http://seclists.org/oss-sec/2011/q3/105</a> [2] <a href="http://freeradius.org/">http://freeradius.org/</a> Statement: Not vulnerable. This issue did not affect the versions of freeradius as shipped with Red Hat Enterprise Linux 4, 5, or 6.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/freeradius | <2.1.12 | 2.1.12 |
| FreeRADIUS FreeRADIUS | =2.1.11 | |
| FreeRADIUS | =2.1.11 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=724815
- http://www.openwall.com/lists/oss-security/2011/07/15/6
- http://www.openwall.com/lists/oss-security/2011/07/20/9
- http://www.openwall.com/lists/oss-security/2011/07/18/2
- http://secunia.com/advisories/45425
- http://www.securityfocus.com/bid/48880
- https://www.dfn-cert.de/informationen/Sicherheitsbulletins/dsb-2011-01.html
- http://securitytracker.com/id?1025833
- http://securityreason.com/securityalert/8325
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68782
- http://www.securityfocus.com/archive/1/518974/100/0/threaded
- http://seclists.org/oss-sec/2011/q3/105
- http://freeradius.org/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=724816
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=514686&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=514686&action=edit
Frequently Asked Questions
What is the severity of CVE-2011-2701?
CVE-2011-2701 is classified as having a moderate severity due to potential vulnerabilities in certificate status verification.
How do I fix CVE-2011-2701?
To remediate CVE-2011-2701, upgrade FreeRADIUS to version 2.1.12 or later.
Which versions of FreeRADIUS are affected by CVE-2011-2701?
FreeRADIUS versions 2.1.11 and earlier are affected by CVE-2011-2701.
What does CVE-2011-2701 impact?
CVE-2011-2701 impacts the OCSP feature in FreeRADIUS that does not verify the status of certificates.
Is there a known exploit for CVE-2011-2701?
There is currently no public information indicating a known exploit for CVE-2011-2701.
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