CVE-2012-3547: Buffer Overflow
First published: Tue Sep 18 2012(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeRADIUS FreeRADIUS | =2.1.10 | |
| FreeRADIUS FreeRADIUS | =2.1.11 | |
| FreeRADIUS FreeRADIUS | =2.1.12 |
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Reference Links
- http://archives.neohapsis.com/archives/bugtraq/2012-09/0043.html
- http://freeradius.org/security.html
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090171.html
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00023.html
- http://osvdb.org/85325
- http://rhn.redhat.com/errata/RHSA-2012-1326.html
- http://rhn.redhat.com/errata/RHSA-2012-1327.html
- http://secunia.com/advisories/50484
- http://secunia.com/advisories/50584
- http://secunia.com/advisories/50637
- http://secunia.com/advisories/50770
- http://www.debian.org/security/2012/dsa-2546
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:159
- http://www.openwall.com/lists/oss-security/2012/09/10/2
- http://www.pre-cert.de/advisories/PRE-SA-2012-06.txt
- http://www.securityfocus.com/bid/55483
- http://www.securitytracker.com/id?1027509
- http://www.ubuntu.com/usn/USN-1585-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78408
Frequently Asked Questions
What is the severity of CVE-2012-3547?
CVE-2012-3547 has a high severity level due to its potential to cause denial of service and execute arbitrary code.
How do I fix CVE-2012-3547?
To resolve CVE-2012-3547, upgrade FreeRADIUS to version 2.1.13 or later, where the vulnerability is patched.
What are the affected versions for CVE-2012-3547?
Versions 2.1.10, 2.1.11, and 2.1.12 of FreeRADIUS are affected by CVE-2012-3547.
What type of vulnerability is CVE-2012-3547?
CVE-2012-3547 is a stack-based buffer overflow vulnerability.
Can CVE-2012-3547 lead to remote code execution?
Yes, CVE-2012-3547 can potentially allow remote attackers to execute arbitrary code.
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- agent/event
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- agent/software-canonical-lookup-request
- vendor/freeradius
- canonical/freeradius freeradius
- version/freeradius freeradius/2.1.10
- version/freeradius freeradius/2.1.11
- version/freeradius freeradius/2.1.12