Bug 2349061 (CVE-2025-1795)

Summary: CVE-2025-1795 python: Mishandling of comma during folding and unicode-encoding of email headers
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, ljawale, luizcosta, nweather, rbobbitt, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Python. When a separating comma ends up on a folded line during an address list folding of email headers, the comma is unintentionally unicode encoded. The expected behavior is that the separating comma remains unencoded. This can result in the address header being misinterpreted by some mail servers.
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Description OSIDB Bzimport 2025-02-28 20:01:04 UTC
During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.