VULNERABILITY INTELLIGENCE

CVE-2018-16869

CVSS score5.7 MEDIUM
EPSS probability1.49%
CISA KEVNot currently listed
Published2018-12-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Description

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.

Weakness classification

  • secalert@redhat.com: CWE-203
  • nvd@nist.gov: CWE-203

Primary references