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Improperly Implemented Security Check for Standard Affecting nss-sysinit package, versions <0:3.19.1-3.el7_1

0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.14% (49th percentile)
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NVD
4.3 medium
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Red Hat
5.6 medium

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  • Snyk ID SNYK-CENTOS7-NSSSYSINIT-2050164
  • published 26 Jul 2021
  • disclosed 2 Jul 2015
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Introduced: 2 Jul 2015

CVE-2015-2721 Open this link in a new tab
CWE-358 Open this link in a new tab

How to fix?

Upgrade Centos:7 nss-sysinit to version 0:3.19.1-3.el7_1 or higher.

NVD Description

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

Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.

References