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Information Exposure Affecting nss-tools package, versions <0:3.44.0-4.el7

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.08% (33rd percentile)
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NVD
4.7 medium
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SUSE
5.1 medium
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Red Hat
5.1 medium

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  • Snyk ID SNYK-CENTOS7-NSSTOOLS-2144785
  • published 26 Jul 2021
  • disclosed 13 Jun 2018
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Introduced: 13 Jun 2018

CVE-2018-0495 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade Centos:7 nss-tools to version 0:3.44.0-4.el7 or higher.

NVD Description

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

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

References