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CVE-2015-1794 is a denial-of-service vulnerability in OpenSSL 1.0.2 before 1.0.2e. The flaw is in the ssl3_get_key_exchange function in ssl/s3_clnt.c when processing a ServerKeyExchange message for an anonymous Diffie-Hellman ciphersuite. If a malicious server sends an anonymous DH ServerKeyExchange with the DH parameter p set to 0, the OpenSSL client can dereference invalid state and crash with a segmentation fault. The issue affects client-side processing of malformed anonymous DH handshake data.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A low-severity OpenSSL denial-of-service vulnerability where a malformed anonymous DH ServerKeyExchange with p set to 0 can cause a client segmentation fault.
A low-severity OpenSSL denial-of-service vulnerability where a malformed anonymous DH ServerKeyExchange with p set to 0 can cause a client segmentation fault.
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.