CVE-2010-2939 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 10% (pctl 95)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| EPSS | 9.98% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-399 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2010-08-17 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| openssl | openssl |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | OpenSSL - 'ssl3_get_key_exchange()' Use-After-Free Memory Corruption | 2010-08-07 |
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
- 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
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