Description
The dtls1_reassemble_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 does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) via a long non-initial fragment.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 1.0.1h-1 | — |
| Debian 13 | openssl | 1.0.1h-1 | — |
| Debian 12 | openssl | 1.0.1h-1 | — |
| Debian 7 | openssl | 1.0.1e-2+deb7u10 | DSA-2950-1 |
| Debian 6.0 | openssl | 0.9.8o-4squeeze15 | DLA-0003-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | openssl | 1.0.1f-1ubuntu2.2 | USN-2232-1 |
| Ubuntu 14.04 LTS | openssl098 | 0.9.8o-7ubuntu3.2.14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openssl +4 | 1:1.0.1e-34.el7_0.3 | RHSA-2014:0679 |
| RHEL 6 | openssl +3 | 1.0.1e-16.el6_5.14 | RHSA-2014:0625 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Gluster Storage 2 | openssl +3 | 1.0.1e-16.el6_5.14 | RHSA-2014:0628 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | mariadb | 10.0.16-15.1 | SUSE-SU-2015:0743-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | mariadb | 10.0.16-15.1 | SUSE-SU-2015:0743-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.1e-34.el7_0.3 | ELSA-2014-0679 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
OpenSSL DTLS Fragment Buffer Overflow DoS
auxiliary/dos/ssl/dtls_fragment_overflow
GitHub 2 repositories
-
ricedu/CVE-2014-0195 ★ 3 · Jun 10, 2014
OpenSSL heap overflow PoC (CVE-2014-0195)
-
PezwariNaan/CVE-2014-0195 ★ 0 · Nov 1, 2024
Exploit for CVE-2014-0195
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 10
- RHSA-2014:0679 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0625 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2014:0628 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- USN-2232-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-2950-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-0003-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2015:0743-1 Security update for mariadb SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2014-0679 Important: openssl security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 23, 2014
References
- 59342 third-party-advisory
- 59669 third-party-advisory
- 59530 third-party-advisory
- 59990 third-party-advisory
- 1030337 vdb-entry
- 59454 third-party-advisory
- 59188 third-party-advisory
- 59126 third-party-advisory
- 59306 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21678289
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- SSRT101846 vendor-advisory
- HPSBUX03046 vendor-advisory
- 61254 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1103598
- 59223 third-party-advisory
- 59895 third-party-advisory
- 58743 third-party-advisory
- 59449 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05301946
- HPSBOV03047 vendor-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21676879
- http://www-01.ibm.com/support/docview.wss?uid=swg21677828
- 59441 third-party-advisory
- HPSBMU03074 vendor-advisory
- 59189 third-party-advisory
- MDVSA-2014:106 vendor-advisory
- 59300 third-party-advisory
- GLSA-201407-05 vendor-advisory
- http://www.ibm.com/support/docview.wss?uid=swg24037783
- 59365 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21677695
- 59305 third-party-advisory
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- http://www-01.ibm.com/support/docview.wss?uid=nas8N1020163
- http://www-01.ibm.com/support/docview.wss?uid=swg21676889
- FEDORA-2014-9308 vendor-advisory
- 58945 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- 58883 third-party-advisory
- 59659 third-party-advisory
- openSUSE-SU-2016:0640 vendor-advisory
- 59429 third-party-advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- 59655 third-party-advisory
- 58660 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21676071
- 59437 third-party-advisory
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095754
- 67900 vdb-entry
- http://www.vmware.com/security/advisories/VMSA-2014-0006.html
- 59310 third-party-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory9.asc
- http://www.fortiguard.com/advisory/FG-IR-14-018/
- SUSE-SU-2015:0743 vendor-advisory
- http://www.ibm.com/support/docview.wss?uid=swg21676793
- http://www.ibm.com/support/docview.wss?uid=swg21676356
- HPSBMU03057 vendor-advisory