Re: security of the lookaside cache

2016-01-04 Thread Adam Williamson
On Wed, 2015-12-30 at 21:07 +0100, Björn Persson wrote: > Kevin Fenzi wrote: > > On Wed, 30 Dec 2015 19:38:35 +0100 > > Björn Persson wrote: > > > Without commit access to Git the attacker couldn't edit the sources > > > file, so – assuming that everything that uses the lookaside cache > > > bothe

Re: security of the lookaside cache (was: frafra uploaded yumex-dnf-4.1.6.tar.gz for yumex-dnf)

2015-12-30 Thread Mathieu Bridon
On Wed, 2015-12-30 at 20:09 +0100, Pierre-Yves Chibon wrote: > On Wed, Dec 30, 2015 at 07:38:35PM +0100, Björn Persson wrote: > > But still, why are we still using MD5? > > For the record bochecha has been leading the move away from md5 to > sha, making the changes in such a way that it will give

Re: security of the lookaside cache

2015-12-30 Thread Björn Persson
Kevin Fenzi wrote: > On Wed, 30 Dec 2015 19:38:35 +0100 > Björn Persson wrote: > > Without commit access to Git the attacker couldn't edit the sources > > file, so – assuming that everything that uses the lookaside cache > > bothers to verify the checksum – the attacker would have to forge a > > t

Re: security of the lookaside cache (was: frafra uploaded yumex-dnf-4.1.6.tar.gz for yumex-dnf)

2015-12-30 Thread Pierre-Yves Chibon
On Wed, Dec 30, 2015 at 07:38:35PM +0100, Björn Persson wrote: > Tim Lauridsen wrote: > > How do i handle a situation where someone, without my knowledge > > uploads new sources to one of my projects. It could be a security > > problem ? > > While I trust that Francesco had only good intentions, t

Re: security of the lookaside cache (was: frafra uploaded yumex-dnf-4.1.6.tar.gz for yumex-dnf)

2015-12-30 Thread Kevin Fenzi
On Wed, 30 Dec 2015 19:38:35 +0100 Björn Persson wrote: > Tim Lauridsen wrote: > > How do i handle a situation where someone, without my knowledge > > uploads new sources to one of my projects. It could be a security > > problem ? > > While I trust that Francesco had only good intentions, the

security of the lookaside cache (was: frafra uploaded yumex-dnf-4.1.6.tar.gz for yumex-dnf)

2015-12-30 Thread Björn Persson
Tim Lauridsen wrote: > How do i handle a situation where someone, without my knowledge > uploads new sources to one of my projects. It could be a security > problem ? While I trust that Francesco had only good intentions, the general question remains: Is it possible to modify a package without com