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  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:13.0.0:hotfix1:*:*:*:*:*:*
  • CPE Name Search: true
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Vuln ID Summary CVSS Severity
CVE-2020-5929

In versions 13.0.0-13.0.0 HF2, 12.1.0-12.1.2 HF1, and 11.6.1-11.6.2, BIG-IP platforms with Cavium Nitrox SSL hardware acceleration cards, a Virtual Server configured with a Client SSL profile, and using Anonymous (ADH) or Ephemeral (DHE) Diffie-Hellman key exchange and Single DH use option not enabled in the options list may be vulnerable to crafted SSL/TLS Handshakes that may result with a PMS (Pre-Master Secret) that starts in a 0 byte and may lead to a recovery of plaintext messages as BIG-IP TLS/SSL ADH/DHE sends different error messages acting as an oracle. Similar error messages when PMS starts with 0 byte coupled with very precise timing measurement observation may also expose this vulnerability.

Published: September 25, 2020; 10:15:13 AM -0400
V3.1: 5.9 MEDIUM
V2.0: 2.6 LOW