Bug 1986898 (CVE-2021-30762)

Summary: CVE-2021-30762 webkitgtk: Use-after-free leading to arbitrary code execution
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: erack, gnome-sig, mcatanza, tpopela, ymittal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: webkitgtk 2.28.0 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. By persuading a victim to visit a specially crafted Web site, an attacker can execute arbitrary code on the system.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-08-30 23:57:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1877119, 1877358, 1986899, 2079470, 2079471    
Bug Blocks: 1986910    

Description Michael Kaplan 2021-07-28 13:46:57 UTC
A use after free issue was addressed with improved memory management.

Comment 1 Michael Kaplan 2021-07-28 13:47:31 UTC
Created webkit2gtk3 tracking bugs for this issue:

Affects: fedora-all [bug 1986899]

Comment 2 Tomas Hoger 2021-08-30 14:48:43 UTC
Upstream advisory:

https://webkitgtk.org/security/WSA-2021-0004.html

Comment 3 Tomas Hoger 2021-08-30 20:06:37 UTC
According to WebKitGTK upstream advisory, this issue was fixed upstream in version 2.28.0.  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:

https://access.redhat.com/errata/RHSA-2020:4035
https://access.redhat.com/errata/RHSA-2020:4451

Comment 4 Product Security DevOps Team 2021-08-30 23:57:28 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-30762