CVE-2014-3509

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-08-13 · updated 2026-06-17
Weakness: CWE-362

Description

Race condition in the ssl_parse_serverhello_tlsext function in t1_lib.c in OpenSSL 1.0.0 before 1.0.0n and 1.0.1 before 1.0.1i, when multithreading and session resumption are used, allows remote SSL servers to cause a denial of service (memory overwrite and client application crash) or possibly have unspecified other impact by sending Elliptic Curve (EC) Supported Point Formats Extension data.

Affected products

OpenSSL: 1.0.0, 1.0.0-beta1, 1.0.0-beta2, 1.0.0-beta3, 1.0.0-beta4, 1.0.0-beta5 (+25)

References

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory10.asc
http://linux.oracle.com/errata/ELSA-2014-1052.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
http://lists.opensuse.org/opensuse-updates/2014-08/msg00036.html
http://marc.info/?l=bugtraq&m=142350350616251&w=2
http://marc.info/?l=bugtraq&m=142495837901899&w=2
http://marc.info/?l=bugtraq&m=142624590206005&w=2
http://marc.info/?l=bugtraq&m=142660345230545&w=2
http://marc.info/?l=bugtraq&m=142791032306609&w=2
http://marc.info/?l=bugtraq&m=143290437727362&w=2

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