Bug 1980441 (CVE-2021-21806) - CVE-2021-21806 webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution
Summary: CVE-2021-21806 webkitgtk: Use-after-free in fireEventListeners leading to arb...
Alias: CVE-2021-21806
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1999678
Blocks: 1986910
TreeView+ depends on / blocked
Reported: 2021-07-08 16:38 UTC by Michael Kaplan
Modified: 2021-11-10 00:24 UTC (History)
4 users (show)

Fixed In Version: webkitgtk 2.30.6
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2021-11-10 00:24:46 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4381 0 None None None 2021-11-09 18:31:30 UTC
WebKit Project 219736 0 None None None 2021-07-14 18:54:17 UTC

Description Michael Kaplan 2021-07-08 16:38:38 UTC
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.

Comment 4 Tomas Hoger 2021-08-30 14:47:20 UTC
Upstream advisory:


Comment 5 Tomas Hoger 2021-08-31 14:34:41 UTC
Talos advisory with more details:


Comment 7 errata-xmlrpc 2021-11-09 18:31:28 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4381 https://access.redhat.com/errata/RHSA-2021:4381

Comment 8 Product Security DevOps Team 2021-11-10 00:24:45 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


Note You need to log in before you can comment on or make changes to this bug.