Bug 2186107 (CVE-2023-29542) - CVE-2023-29542 Mozilla: Bypass of file download extension restrictions
Summary: CVE-2023-29542 Mozilla: Bypass of file download extension restrictions
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2023-29542
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: 2183233
TreeView+ depends on / blocked
 
Reported: 2023-04-12 06:24 UTC by Dhananjay Arunesh
Modified: 2023-04-28 09:42 UTC (History)
5 users (show)

Fixed In Version: firefox 102.10, thunderbird 102.10
Clone Of:
Environment:
Last Closed: 2023-04-12 13:36:05 UTC
Embargoed:

Attachments (Terms of Use)

Description Dhananjay Arunesh 2023-04-12 06:24:09 UTC 
A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk  with .download. This could have led to accidental execution of malicious code.

*This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.*

External Reference:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-14/#CVE-2023-29542
Comment 1 Product Security DevOps Team 2023-04-12 13:36:03 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-2023-29542
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