CVE-2010-3864

Severity: high (CVSS 7.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 22.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-11-17 · updated 2026-06-16
Weakness: CWE-362

Description

Multiple race conditions in ssl/t1_lib.c in OpenSSL 0.9.8f through 0.9.8o, 1.0.0, and 1.0.0a, when multi-threading and internal caching are enabled on a TLS server, might allow remote attackers to execute arbitrary code via client data that triggers a heap-based buffer overflow, related to (1) the TLS server name extension and (2) elliptic curve cryptography.

Affected products

OpenSSL: 0.9.8f, 0.9.8g, 0.9.8h, 0.9.8i, 0.9.8j, 0.9.8k (+6)

References

http://blogs.sun.com/security/entry/cve_2010_3864_race_condition
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051170.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051237.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/051255.html
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00006.html
http://marc.info/?l=bugtraq&m=129916880600544&w=2
http://marc.info/?l=bugtraq&m=130497251507577&w=2
http://marc.info/?l=bugtraq&m=132828103218869&w=2
http://openssl.org/news/secadv_20101116.txt
http://secunia.com/advisories/42241

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