Time-of-check Time-of-use (TOCTOU) Affecting firefox package, versions <0:78.13.0-2.el8_4


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.69% (89th percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-4112511
  • published17 Aug 2021
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-29986  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:78.13.0-2.el8_4 or higher.
This issue was patched in RHSA-2021:3157.

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:8 relevant fixed versions and status.

A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. Note: This issue only affected Linux operating systems. Other operating systems are unaffected. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

CVSS Scores

version 3.1