Bug 1966830 (CVE-2021-29964) - CVE-2021-29964 Mozilla: Out of bounds-read when parsing a `WM_COPYDATA` message
Summary: CVE-2021-29964 Mozilla: Out of bounds-read when parsing a `WM_COPYDATA` message
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2021-29964
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1964432
TreeView+ depends on / blocked
 
Reported: 2021-06-02 01:20 UTC by Doran Moppert
Modified: 2021-07-01 14:00 UTC (History)
5 users (show)

Fixed In Version: firefox 78.11, thunderbird 78.11
Clone Of:
Environment:
Last Closed: 2021-06-02 05:32:04 UTC
Embargoed:

Attachments (Terms of Use)

Description Doran Moppert 2021-06-02 01:20:32 UTC 
A locally-installed hostile program could send `WM_COPYDATA` messages that Firefox would processing incorrectly, leading to an out-of-bounds read.


*This bug only affects Firefox on Windows. Other operating systems are unaffected.*



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-24/#CVE-2021-29964
Comment 1 Product Security DevOps Team 2021-06-02 05:32:04 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-2021-29964
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