Description
The ssl3_send_client_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h, when an anonymous ECDH cipher suite is used, allows remote attackers to cause a denial of service (NULL pointer dereference and client crash) by triggering a NULL certificate value.
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 |
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 SP1 | libqt4 +1 | 4.8.6-7.1 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES 12 SP1 | libqt4-devel-doc | 4.8.6-7.3 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES 12 | libqt4 +1 | 4.8.6-7.1 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES 12 | libqt4-devel-doc | 4.8.6-7.3 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES 12 | mariadb | 10.0.16-15.1 | SUSE-SU-2015:0743-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | libqt4 +1 | 4.8.6-7.1 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES for SAP 12 SP1 | libqt4-devel-doc | 4.8.6-7.3 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES for SAP 12 | libqt4 +1 | 4.8.6-7.1 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| SLES for SAP 12 | libqt4-devel-doc | 4.8.6-7.3 | SUSE-SU-403 Forbidden-1, SUSE-SU-403 |
| 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 |
Advisories 12
- 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-403 Forbidden-1 Security update for OpenSSL SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:0743-1 Security update for mariadb SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-403 Security update for OpenSSL 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
- 59525 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21675626
- 59282 third-party-advisory
- http://www.novell.com/support/kb/doc.php?id=7015300
- 59990 third-party-advisory
- 59264 third-party-advisory
- 59126 third-party-advisory
- http://www.novell.com/support/kb/doc.php?id=7015264
- 59306 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21678289
- 59445 third-party-advisory
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- HPSBUX03046 vendor-advisory
- 59340 third-party-advisory
- 61254 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21676655
- http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6061&myns=phmc&mync=E
- 59223 third-party-advisory
- 59895 third-party-advisory
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=8011cd56e39a433b1837465259a9bd24a38727fb
- 59449 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- 59442 third-party-advisory
- 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=swg24037761
- 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
- 58742 third-party-advisory
- 59300 third-party-advisory
- 58667 third-party-advisory
- GLSA-201407-05 vendor-advisory
- 59191 third-party-advisory
- 59284 third-party-advisory
- http://www.ibm.com/support/docview.wss?uid=swg24037783
- 59365 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21677695
- http://www-01.ibm.com/support/docview.wss?uid=swg21676529
- 59483 third-party-advisory
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- 59495 third-party-advisory
- 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
- 59659 third-party-advisory
- 59440 third-party-advisory
- openSUSE-SU-2016:0640 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- 59655 third-party-advisory
- 58716 third-party-advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21676071
- http://www-01.ibm.com/support/docview.wss?uid=swg21677836