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Use After Free Affecting webkit2gtk3-jsc-debuginfo package, versions <0:2.32.3-2.el8

Severity

 Recommended
medium

Based on Rocky Linux security rating

    Threat Intelligence

    EPSS
    0.36% (73rd percentile)

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  • Snyk ID SNYK-ROCKY8-WEBKIT2GTK3JSCDEBUGINFO-3282985
  • published 5 Jan 2023
  • disclosed 7 Jul 2021
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Introduced: 7 Jul 2021

CVE-2021-21775 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Rocky-Linux:8 webkit2gtk3-jsc-debuginfo to version 0:2.32.3-2.el8 or higher.
This issue was patched in RLSA-2021:4381.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-jsc-debuginfo package and not the webkit2gtk3-jsc-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A use-after-free vulnerability exists in the way certain events are processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. In order to trigger the vulnerability, a victim must be tricked into visiting a malicious webpage.

References

CVSS Scores

version 3.1
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NVD

8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

8.8 high
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Red Hat

8.8 high