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…
- 4.3MediumCVSS base score
- 10.0%Exploitation in 30 daysEPSS · top 4.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- OpenSSL - 'ssl3_get_key_exchange()' Use-After-Free Memory Corruption (Exploit-DB entry) (opens in a new tab)
EDB-ID 34427dos, linuxpublished 7 Aug 2010Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 13 days later
· 13 days later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 10.0% · top 4.4% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
n/a
- affected n/a
References
22
- SSA:2010-326-01 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- [openssl-dev] 20100808 Re: openssl-1.0.0a and glibc detected sthg ;) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- HPSBMA02662 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 42413 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 40906 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2100 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20100812 Re: CVE Request: openssl double free (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20100807 openssl-1.0.0a (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- ADV-2010-2229 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2010-2038 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 1024296 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-1003-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 42309 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2010-3077 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- FreeBSD-SA-10:10 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- 43312 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SR:2010:021 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [openssl-dev] 20100807 openssl-1.0.0a and glibc detected sthg ;) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [openssl-dev] 20100807 Re: openssl-1.0.0a and glibc detected sthg ;) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 41105 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2010-2943 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2010-2939)Record last updated .