CVE-2012-3547

Description

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.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 17.28% Top 10%
Vendor Advisory apple.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory mandriva.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory freeradius.org Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/50584 third party advisory vendor advisory
http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html vendor advisory
http://secunia.com/advisories/50637 third party advisory
http://www.ubuntu.com/usn/USN-1585-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2012-1327.html vendor advisory
http://secunia.com/advisories/50484 third party advisory vendor advisory
http://www.debian.org/security/2012/dsa-2546 vendor advisory
http://www.securityfocus.com/bid/55483 vdb entry
http://www.securitytracker.com/id?1027509 vdb entry
http://www.pre-cert.de/advisories/PRE-SA-2012-06.txt
http://archives.neohapsis.com/archives/bugtraq/2012-09/0043.html mailing list
http://www.openwall.com/lists/oss-security/2012/09/10/2 mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2012:159 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00023.html vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78408 vdb entry
http://rhn.redhat.com/errata/RHSA-2012-1326.html vendor advisory
http://osvdb.org/85325 vdb entry
http://secunia.com/advisories/50770 third party advisory
http://freeradius.org/security.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090171.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-3547?
CVE-2012-3547 has been scored as a medium severity vulnerability.
How to fix CVE-2012-3547?
To fix CVE-2012-3547, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-3547 being actively exploited in the wild?
It is possible that CVE-2012-3547 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~17% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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