CVE-2017-17688 - Cryptographic Issues vulnerability in multiple products

Publication

2018-05-16

Last modification

2018-06-27

Summary

** DISPUTED ** The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification.

Classification

CWE-310 - Cryptographic Issues

Risk level (CVSS AV:N/AC:M/Au:N/C:P/I:N/A:N)

Medium

4.3

Access Vector

  • Network
  • Adjacent Network
  • Local

Access Complexity

  • Low
  • Medium
  • High

Authentication

  • None
  • Single
  • Multiple

Confident. Impact

  • Complete
  • Partial
  • None

Integrity Impact

  • Complete
  • Partial
  • None

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