Information Exposure Affecting gnutls28 package, versions <3.6.5-2ubuntu1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-UBUNTU2010-GNUTLS28-1032444
  • published3 Dec 2018
  • disclosed3 Dec 2018

Introduced: 3 Dec 2018

CVE-2018-16868  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.10 gnutls28 to version 3.6.5-2ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.10 relevant fixed versions and status.

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

CVSS Scores

version 3.1