package: mat severity: important tags: security upstream forwarded: https://labs.riseup.net/code/issues/11067
Hi, https://digitalcourage.de/blog/2016/using-tails-be-careful-embedded-metadata explains how mat fails to do what it's supposed to do, namely removing embedded meta data. I havent't verifed this myself, but appearantly it doesnt remove metadata from images embedded in PDFs. So basically the core feature of mat is partly broken :/ I wonder if similar bugs happen with other recursive formats, like an OpenDocument text embedding an image or embedding a pdf embedding an image or a zip file containing a zip file containing a .odt file containing an pdf containing an image… -- cheers, Holger
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