Bug 1986870 (CVE-2021-30661) - CVE-2021-30661 webkitgtk: Use-after-free leading to arbitrary code execution
Summary: CVE-2021-30661 webkitgtk: Use-after-free leading to arbitrary code execution
Alias: CVE-2021-30661
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1908476 1986871 2079444 2079445 2079446
Blocks: 1986910
TreeView+ depends on / blocked
Reported: 2021-07-28 13:35 UTC by Michael Kaplan
Modified: 2023-03-16 14:00 UTC (History)
5 users (show)

Fixed In Version: webkitgtk 2.30.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the webkitgtk package. Affected versions of this package could allow a remote attacker to execute arbitrary code on the system caused by a use-after-free in the WebKit component. An attacker can execute arbitrary code on the system by persuading a victim to visit a specially crafted Web site.
Clone Of:
Last Closed: 2021-08-31 18:56:33 UTC

Attachments (Terms of Use)

Description Michael Kaplan 2021-07-28 13:35:07 UTC
A use after free issue was addressed with improved memory management.

Comment 1 Michael Kaplan 2021-07-28 13:36:57 UTC
Created webkit2gtk3 tracking bugs for this issue:

Affects: fedora-all [bug 1986871]

Comment 2 Tomas Hoger 2021-08-30 14:47:27 UTC
Upstream advisory:


Comment 3 Tomas Hoger 2021-08-31 12:34:05 UTC
According to the WebKitGTK upstream advisory, this issue was fixed upstream in version 2.30.0.  The  webkit2gtk3 packages in Red Hat Enterprise Linux 8 were previously updated to fixed upstream versions via the following erratum:


Comment 4 Product Security DevOps Team 2021-08-31 18:56:33 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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