Encoding Error Affecting nss-softokn package, versions <0:3.16.2-1.el7_0


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.16% (54th percentile)

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  • Snyk ID SNYK-CENTOS7-NSSSOFTOKN-2037066
  • published 26 Jul 2021
  • disclosed 18 Mar 2014

How to fix?

Upgrade Centos:7 nss-softokn to version 0:3.16.2-1.el7_0 or higher.

NVD Description

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

The cert_TestHostName function in lib/certdb/certdb.c in the certificate-checking implementation in Mozilla Network Security Services (NSS) before 3.16 accepts a wildcard character that is embedded in an internationalized domain name's U-label, which might allow man-in-the-middle attackers to spoof SSL servers via a crafted certificate.

References

CVSS Scores

version 3.1
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NVD

4.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

Red Hat

3.7 low