Use After Free Affecting webkitgtk4 package, versions <0:2.28.2-3.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.72% (81st percentile)

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  • Snyk ID SNYK-RHEL7-WEBKITGTK4-1656987
  • published 22 Sep 2021
  • disclosed 20 Sep 2021

How to fix?

Upgrade RHEL:7 webkitgtk4 to version 0:2.28.2-3.el7 or higher.
This issue was patched in RHSA-2022:0059.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkitgtk4 package and not the webkitgtk4 package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CVSS Scores

version 3.1
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NVD

8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

8.8 high
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SUSE

8.8 high