Bug 2245902 (CVE-2023-5727)

Summary: CVE-2023-5727 Mozilla: Download Protections were bypassed by .msix, .msixbundle, .appx, and .appxbundle files on Windows
Product: [Other] Security Response Reporter: Mauro Matteo Cascella <mcascell>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: firefox 115.4, thunderbird 115.4.1 Doc Type: ---
Doc Text:
The Mozilla Foundation Security Advisory describes this flaw as: The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2245887    

Description Mauro Matteo Cascella 2023-10-24 14:17:03 UTC
The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer.  

*Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*

External Reference:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-46/#CVE-2023-5727