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CVE-2014-0195 is an out-of-bounds write vulnerability in OpenSSL's DTLS handshake fragment reassembly logic, specifically dtls1_reassemble_fragment in d1_both.c. OpenSSL before 0.9.8za, 1.0.0m, and 1.0.1h fails to properly validate fragment lengths in DTLS ClientHello messages. A long, non-initial DTLS fragment can overrun the destination buffer during reassembly.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit auxiliary module (modules/auxiliary/dos/ssl/dtls_fragment_overflow.rb) that exploits a buffer overflow vulnerability in OpenSSL's DTLS implementation (CVE-2014-0195). The exploit targets OpenSSL versions before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h. The module constructs and sends specially crafted fragmented DTLS ClientHello messages over UDP to a specified target port (default 4433). If the target is vulnerable, this causes a buffer overflow and results in a denial of service (crash) of the DTLS service. The code is written in Ruby and is designed to be run within the Metasploit framework. No payload is delivered; the exploit's sole purpose is to crash the service. The only fingerprintable endpoint is the UDP port (default 4433) on the target, which must be running a vulnerable OpenSSL DTLS service.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Potentially arbitrary-code-execution buffer overrun in OpenSSL DTLS clients and servers.
Buffer overrun in OpenSSL DTLS fragment handling with potential remote code execution
OpenSSL DTLS buffer overrun vulnerability that may allow arbitrary code execution via invalid DTLS fragments.
A remotely exploitable OpenSSL DTLS ClientHello fragment-length validation flaw that can cause a buffer overflow, potentially enabling arbitrary code execution or denial of service.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.