CVE-2010-2939
Double free vulnerability in the ssl3_get_key_exchange function in the OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and possibly other versions, when using ECDH, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted private key with an invalid prime. NOTE: some sources refer to this as a use-after-free issue.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-399
- EPSS score
- 10.0% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-2943)
- Published
- August 17, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-2943 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- openssl / openssl
- openssl / openssl
- openssl / openssl
References
- http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html
- http://marc.info/?l=bugtraq&m=130331363227777&w=2
- http://seclists.org/fulldisclosure/2010/Aug/84
- http://secunia.com/advisories/40906(Vendor Advisory)
- http://secunia.com/advisories/41105
- http://secunia.com/advisories/42309
- http://secunia.com/advisories/42413
- http://secunia.com/advisories/43312
- http://security.FreeBSD.org/advisories/FreeBSD-SA-10:10.openssl.asc
- http://securitytracker.com/id?1024296
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668793
- http://www.debian.org/security/2010/dsa-2100
- http://www.mail-archive.com/openssl-dev%40openssl.org/msg28043.html
- http://www.mail-archive.com/openssl-dev%40openssl.org/msg28045.html
- http://www.mail-archive.com/openssl-dev%40openssl.org/msg28049.html
- http://www.openwall.com/lists/oss-security/2010/08/11/6
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.ubuntu.com/usn/USN-1003-1
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://www.vupen.com/english/advisories/2010/2038(Vendor Advisory)
- http://www.vupen.com/english/advisories/2010/2229
- http://www.vupen.com/english/advisories/2010/3077
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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