Date: Mon, 23 Mar 2015 22:41:01 +0100 From: Marcus Meissner <meissner@...e.de> To: oss-security@...ts.openwall.com Subject: Re: CVE for Kali Linux On Tue, Mar 24, 2015 at 12:13:06AM +0300, Alexander Cherepanov wrote: > On 2015-03-23 13:38, Marcus Meissner wrote: > >>There are some attacks even if you verify signatures, e.g. serving > >>old, known-vulnerable versions. HTTPS can help here (until > >>signatures start to be widely accompanied by expiring timestamps or > >>something). > > > >SUSE has added an expiry tag in the YUM metadata for such cases. > > It's nice to see progress in this area. Does SUSE guard against > other attacks from  too? > >  https://isis.poly.edu/~jcappos/papers/cappos_pmsec_tr08-02.pdf Our statements from 2008 (7 years ago) still stand and our package manager does the full repository signing since 2006 already. https://lizards.opensuse.org/2008/07/16/package-management-security-on-opensuse/ "Endless Data Attack" is open, as it is hard to solve for openSUSE with its public mirror system. The expiry was something added a bit later after the paper to address the downgrade and replay attacks. Ciao, Marcus
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