Heap-based Buffer Overflow Affecting firefox package, versions <0:68.2.0-2.el8_0


Severity

Recommended
critical

Based on CentOS security rating.

Threat Intelligence

EPSS
4.77% (93rd percentile)

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  • Snyk IDSNYK-CENTOS8-FIREFOX-1992962
  • published26 Jul 2021
  • disclosed4 Sept 2019

Introduced: 4 Sep 2019

CVE-2019-15903  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Centos:8 firefox to version 0:68.2.0-2.el8_0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

References

CVSS Scores

version 3.1