Exploitation Summary
EIP tracks 1 public exploit for CVE-2014-0221. PoCs published by tpdlshdmlrkfmcla.
AI-analyzed exploit summary This repository contains a detailed writeup explaining the OpenSSL DTLS CVE-2014-0221 vulnerability, which allows a remote denial-of-service attack via a malformed DTLS handshake message. The README includes technical background on DTLS and OpenSSL, as well as code snippets illustrating the recursive function call in `dtls1_get_message_fragment`.
Description
The dtls1_get_message_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service (recursion and client crash) via a DTLS hello message in an invalid DTLS handshake.
Exploits (1)
nomisec
WRITEUP
by tpdlshdmlrkfmcla · poc
https://github.com/tpdlshdmlrkfmcla/OpenSSL_DTLS_CVE_2014_0221
This repository contains a detailed writeup explaining the OpenSSL DTLS CVE-2014-0221 vulnerability, which allows a remote denial-of-service attack via a malformed DTLS handshake message. The README includes technical background on DTLS and OpenSSL, as well as code snippets illustrating the recursive function call in `dtls1_get_message_fragment`.
Classification
Writeup 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target:
OpenSSL 0.9.8, 1.0.0, 1.0.1
No auth needed
Prerequisites:
Network access to a vulnerable OpenSSL DTLS client
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026
Full analysis →
References (127)
Core 127
Core References
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59342
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59669
Third Party Advisory x_refsource_confirm
http://www.novell.com/support/kb/doc.php?id=7015300
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59990
Broken Link, Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1030337
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59454
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59126
Third Party Advisory x_refsource_confirm
http://www.novell.com/support/kb/doc.php?id=7015264
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59306
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21678289
Third Party Advisory x_refsource_confirm
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140266410314613&w=2
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/61254
Broken Link x_refsource_confirm
http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6061&myns=phmc&mync=E
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59895
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59449
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=isg400001843
Third Party Advisory x_refsource_confirm
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05301946
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140317760000786&w=2
Broken Link x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676879
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21677828
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59441
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140621259019789&w=2
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59189
Broken Link vendor-advisory
x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2014:106
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59300
Third Party Advisory vendor-advisory
x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201407-05.xml
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59284
Third Party Advisory x_refsource_confirm
http://www.ibm.com/support/docview.wss?uid=swg24037783
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59365
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21677695
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/534161/100/0/threaded
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59495
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=nas8N1020163
Broken Link x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676889
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58945
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=isg400001841
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59659
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59429
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59655
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676071
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59437
Broken Link x_refsource_confirm
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095754
Third Party Advisory x_refsource_confirm
http://www.vmware.com/security/advisories/VMSA-2014-0006.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59310
Patch, Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Third Party Advisory x_refsource_confirm
http://aix.software.ibm.com/aix/efixes/security/openssl_advisory9.asc
Third Party Advisory x_refsource_confirm
http://www.fortiguard.com/advisory/FG-IR-14-018/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.html
Broken Link x_refsource_confirm
http://www.ibm.com/support/docview.wss?uid=swg21676793
Third Party Advisory x_refsource_confirm
http://www.ibm.com/support/docview.wss?uid=swg21676356
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140389274407904&w=2
Third Party Advisory x_refsource_confirm
http://support.citrix.com/article/CTX140876
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59167
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59120
Broken Link x_refsource_confirm
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095757
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140499827729550&w=2
Broken Link vendor-advisory
x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2014:105
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59460
Broken Link vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2014-1021.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58939
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59027
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59514
Broken Link x_refsource_confirm
http://www.ibm.com/support/docview.wss?uid=swg21676226
Third Party Advisory vendor-advisory
x_refsource_cisco
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140605-openssl
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/67901
Broken Link x_refsource_confirm
https://kc.mcafee.com/corporate/index?page=content&id=SB10075
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59221
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676419
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58714
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140482916501310&w=2
Vendor Advisory x_refsource_confirm
http://www.openssl.org/news/secadv_20140605.txt
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58615
Mailing List, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2014/Dec/23
Third Party Advisory x_refsource_confirm
http://support.apple.com/kb/HT6443
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59301
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59784
Broken Link x_refsource_confirm
https://kb.bluecoat.com/index?page=content&id=SA80
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140904544427729&w=2
Third Party Advisory x_refsource_confirm
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10629
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21678167
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59192
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140752315422991&w=2
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140389355508263&w=2
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59175
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140448122410568&w=2
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59666
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140431828824371&w=2
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59413
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21675821
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59721
Broken Link x_refsource_confirm
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095756
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676062
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58713
Broken Link x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21673137
Broken Link vendor-advisory
x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2015:062
Broken Link x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21676035
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59450
Third Party Advisory x_refsource_confirm
http://linux.oracle.com/errata/ELSA-2014-1053.html
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59287
Third Party Advisory x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21683332
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59491
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59364
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59451
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58977
Third Party Advisory x_refsource_confirm
https://www.novell.com/support/kb/doc.php?id=7015271
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/60571
Vendor Advisory x_refsource_confirm
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=d3152655d5319ce883c8e3ac4b99f8de4c59d846
Third Party Advisory x_refsource_confirm
http://www.blackberry.com/btsc/KB36051
Broken Link x_refsource_confirm
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095755
Third Party Advisory x_refsource_confirm
http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-345106.htm
Broken Link x_refsource_confirm
http://www-01.ibm.com/support/docview.wss?uid=swg21677527
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/60687
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1103593
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59528
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/58337
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59518
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59162
Not Applicable third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/59490
Broken Link x_refsource_confirm
http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6060&myns=phmc&mync=E
Mailing List, Third Party Advisory vendor-advisory
x_refsource_hp
http://marc.info/?l=bugtraq&m=140491231331543&w=2
Scores
EPSS
0.8789
EPSS Percentile
99.7%
Details
Status
published
Products (14)
fedoraproject/fedora
fedoraproject/fedora
19
fedoraproject/fedora
20
mariadb/mariadb
10.0.0 - 10.0.13
openssl/openssl
0.9.8 - 0.9.8za
opensuse/leap
42.1
opensuse/opensuse
13.2
redhat/enterprise_linux
5
redhat/enterprise_linux
6.0
redhat/storage
2.1
... and 4 more
Published
Jun 05, 2014
Tracked Since
Feb 18, 2026