Description
The DTLS retransmission implementation in OpenSSL 1.0.0 before 1.0.0l and 1.0.1 before 1.0.1f does not properly maintain data structures for digest and encryption contexts, which might allow man-in-the-middle attackers to trigger the use of a different context and cause a denial of service (application crash) by interfering with packet delivery, related to ssl/d1_both.c and ssl/t1_enc.c.
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 | 1.0.1e-5 | — |
| Debian 13 | openssl | 1.0.1e-5 | — |
| Debian 12 | openssl | 1.0.1e-5 | — |
| Debian 7 | openssl | 1.0.1e-2+deb7u1 | DSA-2833-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | openssl +3 | 1.0.1e-16.el6_5.4 | RHSA-2014:0015 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Advisories 4
- RHSA-2014:0015 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- DSA-2833-1 openssl - several Debian Security (DSA / DLA) · Mar 9, 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
- WID-SEC-2023-0504 OpenSSL: Schwachstelle ermöglicht Manipulation von Dateien BSI CERT-Bund (WID) · Feb 27, 2023
References
- openSUSE-SU-2014:0049 vendor-advisory
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- 1031594 vdb-entry
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- 1029549 vdb-entry
- GLSA-201412-39 vendor-advisory
- DSA-2833 vendor-advisory
- https://puppet.com/security/cve/cve-2013-6450
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=34628967f1e65dc8f34e000f0f5518e21afbfc7b
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- FEDORA-2014-9308 vendor-advisory
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- openSUSE-SU-2014:0048 vendor-advisory
- USN-2079-1 vendor-advisory
- https://security-tracker.debian.org/tracker/CVE-2013-6450
- 64618 vdb-entry
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- RHSA-2014:0015 vendor-advisory
- 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities mailing-list
- FEDORA-2014-9301 vendor-advisory
- http://www.openssl.org/news/vulnerabilities.html