CVE-2010-2939

OpenSSL - 'ssl3_get_key_exchange()' Use-After-Free Memory Corruption

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Vulnerabilidad de doble liberación en la función ssl3_get_key_exchange en el cliente OpenSSL (ssl/s3_clnt.c) de OpenSSL v1.0.0a, v0.9.8, v0.9.7, y posiblemente otras versiones, cuando usa ECDH, permite a atacantes depediendo del contexto provocar una denegación de servicio (caída) y posiblemente ejecutar código a su elección a través de claves privadas manipuladas con un número no válido. NOTA: algunas fuentes se refieren a esto como un problema de uso después de la liberación.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2010-08-04 CVE Reserved
2010-08-07 First Exploit
2010-08-17 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (23)

URL	Tag	Source
http://seclists.org/fulldisclosure/2010/Aug/84	Mailing List
http://secunia.com/advisories/41105	Third Party Advisory
http://secunia.com/advisories/42309	Third Party Advisory
http://secunia.com/advisories/42413	Third Party Advisory
http://secunia.com/advisories/43312	Third Party Advisory
http://securitytracker.com/id?1024296	Vdb Entry
http://www.mail-archive.com/openssl-dev%40openssl.org/msg28043.html	Mailing List
http://www.mail-archive.com/openssl-dev%40openssl.org/msg28045.html	Mailing List
http://www.mail-archive.com/openssl-dev%40openssl.org/msg28049.html	Mailing List
http://www.openwall.com/lists/oss-security/2010/08/11/6	Mailing List
http://www.securityfocus.com/archive/1/516397/100/0/threaded	Mailing List
http://www.vmware.com/security/advisories/VMSA-2011-0003.html	X_refsource_confirm
http://www.vupen.com/english/advisories/2010/2229	Vdb Entry
http://www.vupen.com/english/advisories/2010/3077	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/34427	2010-08-07

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00005.html	2023-11-07
http://marc.info/?l=bugtraq&m=130331363227777&w=2	2023-11-07
http://secunia.com/advisories/40906	2023-11-07
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:10.openssl.asc	2023-11-07
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668793	2023-11-07
http://www.debian.org/security/2010/dsa-2100	2023-11-07
http://www.ubuntu.com/usn/USN-1003-1	2023-11-07
http://www.vupen.com/english/advisories/2010/2038	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openssl Search vendor "Openssl"		Openssl Search vendor "Openssl" for product "Openssl"				0.9.7 Search vendor "Openssl" for product "Openssl" and version "0.9.7"		-		Affected
Openssl Search vendor "Openssl"		Openssl Search vendor "Openssl" for product "Openssl"				0.9.8 Search vendor "Openssl" for product "Openssl" and version "0.9.8"		-		Affected
Openssl Search vendor "Openssl"		Openssl Search vendor "Openssl" for product "Openssl"				1.0.0a Search vendor "Openssl" for product "Openssl" and version "1.0.0a"		-		Affected