Buffer Overflow Affecting thunderbird package, versions <0:60.4.0-1.el7_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.09% (85th percentile)

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  • Snyk IDSNYK-RHEL7-THUNDERBIRD-4846618
  • published26 Jul 2021
  • disclosed11 Dec 2018

Introduced: 11 Dec 2018

CVE-2018-18493  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade RHEL:7 thunderbird to version 0:60.4.0-1.el7_6 or higher.
This issue was patched in RHSA-2019:0160.

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.

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.