Buffer Overflow Affecting firefox package, versions <0:60.4.0-1.el7


Severity

Recommended
0.0
critical
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.48% (76th percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-4822575
  • 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 firefox to version 0:60.4.0-1.el7 or higher.
This issue was patched in RHSA-2018:3833.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox 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.