Improperly Implemented Security Check for Standard Affecting nss-tools package, versions <0:3.21.3-2.0.1.el7_3


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.19% (59th percentile)

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  • Snyk IDSNYK-ORACLE7-NSSTOOLS-2511919
  • published10 Apr 2022
  • disclosed1 Aug 2018

Introduced: 1 Aug 2018

CVE-2016-8635  (opens in a new tab)
CWE-358  (opens in a new tab)

How to fix?

Upgrade Oracle:7 nss-tools to version 0:3.21.3-2.0.1.el7_3 or higher.
This issue was patched in ELSA-2016-2779.

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 Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.