Covert Timing Channel Affecting openssl-libs package, versions <1:1.0.2k-19.el7


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.34% (73rd percentile)

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  • Snyk IDSNYK-CENTOS7-OPENSSLLIBS-2145346
  • published26 Jul 2021
  • disclosed16 Oct 2018

Introduced: 16 Oct 2018

CVE-2018-0734  (opens in a new tab)
CWE-385  (opens in a new tab)

How to fix?

Upgrade Centos:7 openssl-libs to version 1:1.0.2k-19.el7 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 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

CVSS Scores

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