Covert Timing Channel Affecting openssl-libs package, versions <1:1.1.1c-2.el8


low

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.29% (69th percentile)
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NVD
5.9 medium
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SUSE
5.9 medium
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Red Hat
5.1 medium

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  • Snyk ID SNYK-CENTOS8-OPENSSLLIBS-2015799
  • published 26 Jul 2021
  • disclosed 16 Oct 2018

How to fix?

Upgrade Centos:8 openssl-libs to version 1:1.1.1c-2.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl-libs package and not the openssl-libs package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).

References