CVE-2011-3210

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-09-22 · updated 2026-06-16
Weakness: CWE-399

Description

The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through 0.9.8r and 1.0.x before 1.0.0e does not ensure thread safety during processing of handshake messages from clients, which allows remote attackers to cause a denial of service (daemon crash) via out-of-order messages that violate the TLS protocol.

Affected products

OpenSSL: 0.9.8, 0.9.8a, 0.9.8b, 0.9.8c, 0.9.8d, 0.9.8e (+24)

References

http://cvs.openssl.org/chngview?cn=21337
http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
http://marc.info/?l=bugtraq&m=132750648501816&w=2
http://marc.info/?l=bugtraq&m=133226187115472&w=2
http://openssl.org/news/secadv_20110906.txt
http://secunia.com/advisories/57353
http://support.apple.com/kb/HT5784
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
http://www.mandriva.com/security/advisories?name=MDVSA-2011:137
http://www.securitytracker.com/id?1026012
https://bugzilla.redhat.com/show_bug.cgi?id=736079
http://cvs.openssl.org/chngview?cn=21337

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