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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-2939
• 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
• 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@openssl.org/msg28043.html
• http://www.mail-archive.com/openssl-dev@openssl.org/msg28045.html
• http://www.mail-archive.com/openssl-dev@openssl.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
• http://www.vupen.com/english/advisories/2010/2229
• http://www.vupen.com/english/advisories/2010/3077
• 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