Covert Timing Channel Affecting gnutls package, versions <3.6.2-6.3.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-SLES150-GNUTLS-2761004
  • published14 Apr 2022
  • disclosed28 Sept 2018

Introduced: 28 Sep 2018

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

How to fix?

Upgrade SLES:15.0 gnutls to version 3.6.2-6.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by SLES. See How to fix? for SLES:15.0 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 Base Scores

version 3.1