CVE-2014-3509
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 12.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 12.91% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
EPSS 12.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-008.txt.asc
- 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
- http://marc.info/?l=bugtraq&m=143290522027658&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0197.html
- http://secunia.com/advisories/58962
- http://secunia.com/advisories/59700
- http://secunia.com/advisories/59710
- http://secunia.com/advisories/59756
- http://secunia.com/advisories/60022
- http://secunia.com/advisories/60221
- http://secunia.com/advisories/60493
- http://secunia.com/advisories/60684
- http://secunia.com/advisories/60803
- http://secunia.com/advisories/60917
- http://secunia.com/advisories/60921
- http://secunia.com/advisories/60938
- http://secunia.com/advisories/61017
- http://secunia.com/advisories/61100
- http://secunia.com/advisories/61139
- http://secunia.com/advisories/61184
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.