Information Exposure

Affecting nettle package, versions *

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Overview

A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

References

CVSS Score

5.7
low severity
  • Attack Vector
    Physical
  • Attack Complexity
    High
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Changed
  • Confidentiality
    High
  • Integrity
    Low
  • Availability
    None
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
CVE
CVE-2018-16869
CWE
CWE-203
Snyk ID
SNYK-UBUNTU1804-NETTLE-302013
Disclosed
03 Dec, 2018
Published
03 Dec, 2018