CVE-2009-1379

OpenSSL 1.0.0 Beta 2 - Use-After-Free in DTLS Fragment Retrieval

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-1379. PoCs published by Jon Oberheide.

AI-analyzed exploit summary This exploit targets a memory exhaustion vulnerability in OpenSSL's DTLS implementation (CVE-2009-1378). It sends out-of-sequence handshake messages to exhaust memory on the target server.

Description

Use-after-free vulnerability in the dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL 1.0.0 Beta 2 allows remote attackers to cause a denial of service (openssl s_client crash) and possibly have unspecified other impact via a DTLS packet, as demonstrated by a packet from a server that uses a crafted server certificate.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Jon Oberheide · cdosmultiple

https://www.exploit-db.com/exploits/8720

View Code ZIP pw:eip

This exploit targets a memory exhaustion vulnerability in OpenSSL's DTLS implementation (CVE-2009-1378). It sends out-of-sequence handshake messages to exhaust memory on the target server.

Classification

Working Poc 100%

Attack Type

Dos

Complexity

Trivial

Reliability

Reliable

Target: OpenSSL <= 0.9.8k, 1.0.0-beta2

No auth needed

Prerequisites: Network access to the target DTLS server

MITRE ATT&CK

T1499 - Endpoint Denial of Service

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (32)

Core 32

Core References

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/42724

Various Sources x_refsource_misc

https://launchpad.net/bugs/cve/2009-1379

Vendor Advisory vendor-advisory x_refsource_slackware

http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/38794

Various Sources mailing-list x_refsource_mlist

http://lists.vmware.com/pipermail/security-announce/2010/000082.html

Third Party Advisory vdb-entry x_refsource_vupen

http://www.vupen.com/english/advisories/2009/1377

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/35729

Third Party Advisory vendor-advisory x_refsource_gentoo

http://security.gentoo.org/glsa/glsa-200912-01.xml

Vendor Advisory vendor-advisory x_refsource_redhat

http://www.redhat.com/support/errata/RHSA-2009-1335.html

Vendor Advisory vendor-advisory x_refsource_hp

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/38761

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/37003

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/36533

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id?1022241

Vendor Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-792-1

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html

Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9744

Third Party Advisory, VDB Entry vdb-entry x_refsource_xf

https://exchange.xforce.ibmcloud.com/vulnerabilities/50661

Product x_refsource_confirm

http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/35138

Mailing List mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2009/05/18/4

Vendor Advisory vendor-advisory x_refsource_netbsd

ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/38834

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/35461

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/35571

Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6848

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/35416

Product x_refsource_confirm

http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net

Various Sources x_refsource_confirm

https://kb.bluecoat.com/index?page=content&id=SA50

Exploit x_refsource_confirm

http://rt.openssl.org/Ticket/Display.html?id=1923&user=guest&pass=guest

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/42733

Third Party Advisory vdb-entry x_refsource_vupen

http://www.vupen.com/english/advisories/2010/0528

Scores

EPSS 0.1824

EPSS Percentile 96.8%

Details

CWE

CWE-399

Status published

Products (1)

openssl/openssl 1.0.0 beta2

Published May 19, 2009

Tracked Since Feb 18, 2026