Covert Timing Channel Affecting gnutls package, versions <0:3.3.29-8.0.1.el7


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-ORACLE7-GNUTLS-2524015
  • published10 Apr 2022
  • disclosed22 Aug 2018

Introduced: 22 Aug 2018

CVE-2018-10846  (opens in a new tab)
CWE-385  (opens in a new tab)

How to fix?

Upgrade Oracle:7 gnutls to version 0:3.3.29-8.0.1.el7 or higher.
This issue was patched in ELSA-2018-3050.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.

CVSS Scores

version 3.1