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Covert Timing Channel Affecting openssl-libs package, versions <1:1.0.1e-51.el7_2.7

high

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.14% (49th percentile)
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NVD
5.5 medium
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Red Hat
5.1 medium

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  • Snyk ID SNYK-CENTOS7-OPENSSLLIBS-2069401
  • published 26 Jul 2021
  • disclosed 23 May 2016
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Introduced: 23 May 2016

CVE-2016-2178 Open this link in a new tab
CWE-385 Open this link in a new tab

How to fix?

Upgrade Centos:7 openssl-libs to version 1:1.0.1e-51.el7_2.7 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:7 relevant fixed versions and status.

The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.

References