oss-sec mailing list archives
Re: Re: kwallet crypto misuse
From: Michael Samuel <mik () miknet net>
Date: Fri, 3 Jan 2014 10:32:09 +1100
KWallet uses QDataStream, which encodes QString objects (used in KWallet maps) as UTF-16. So, the string "abcd" will be stored as "\0a\0b\0c\0d", which gives four bytes of information per block.Does anyone know whether the KWallet user interface could make it possible to enter passwords containing 16-bit characters (i.e., characters that cannot be represented using 8 bits)? If that would not be possible, then this issue could potentially qualify for an additional CVE assignment.
I don't think another CVE is warranted - this just amplifies the original vulnerability. Implementing a cryptographic store (eg. a cryptographic file protocol) is non-trivial and the KDE developers might wish to seek help with this - perhaps a wiki page? Regards, Michael
Current thread:
- kwallet crypto misuse Florian Weimer (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: Re: kwallet crypto misuse Kurt Seifried (Jan 02)
- Re: Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 02)
- Re: Re: kwallet crypto misuse Michael Samuel (Jan 02)
- Re: kwallet crypto misuse cve-assign (Jan 02)
- Re: kwallet crypto misuse gremlin (Jan 02)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)
- Re: kwallet crypto misuse Simon McVittie (Jan 03)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)
- Re: kwallet crypto misuse cve-assign (Jan 03)
- Re: kwallet crypto misuse Daniel Kahn Gillmor (Jan 03)
- Re: kwallet crypto misuse gremlin (Jan 04)