Improper Access Control Affecting thunderbird package, versions <0:38.3.0-1.el7_1


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.11% (86th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-5068846
  • published26 Jul 2021
  • disclosed22 Sept 2015

Introduced: 22 Sep 2015

CVE-2015-4520  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:38.3.0-1.el7_1 or higher.
This issue was patched in RHSA-2015:1852.

NVD Description

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

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

CVSS Scores

version 3.1