Bug 1986894 (CVE-2021-30761) - CVE-2021-30761 webkitgtk: Memory corruption leading to arbitrary code execution
Summary: CVE-2021-30761 webkitgtk: Memory corruption leading to arbitrary code execution
Alias: CVE-2021-30761
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1877119 1877358 1986895 2079474 2079475
Blocks: 1986910
TreeView+ depends on / blocked
Reported: 2021-07-28 13:45 UTC by Michael Kaplan
Modified: 2023-03-16 14:06 UTC (History)
5 users (show)

Fixed In Version: webkitgtk 2.26.0
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 memory corruption in the WebKit component. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system.
Clone Of:
Last Closed: 2021-08-30 23:57:25 UTC

Attachments (Terms of Use)

Description Michael Kaplan 2021-07-28 13:45:31 UTC
A memory corruption issue was addressed with improved state management.

Comment 1 Michael Kaplan 2021-07-28 13:46:44 UTC
Created webkit2gtk3 tracking bugs for this issue:

Affects: fedora-all [bug 1986895]

Comment 2 Tomas Hoger 2021-08-30 14:48:37 UTC
Upstream advisory:


Comment 3 Tomas Hoger 2021-08-30 19:59:59 UTC
According to WebKitGTK upstream advisory, this issue was fixed upstream in version 2.26.0.  The webkitgtk4 packages in Red Hat Enterprise Linux 6 and webkit2gtk3 packages in Red Hat Enterprise Linux 8 were previously updated to fixed upstream versions via the following errata:


Comment 4 Product Security DevOps Team 2021-08-30 23:57:25 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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