From 2a6d2e9c0781a0a7bb5d2aad7b8bdbee315d4461 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Thu, 6 Oct 2016 18:30:51 +0200 Subject: keep Release.gpg on untrusted to trusted IMS-Hit A user relying on the deprecated behaviour of apt-get to accept a source with an unknown pubkey to install a package containing the key expects that the following 'apt-get update' causes the source to be considered as trusted, but in case the source hadn't changed in the meantime this wasn't happening: The source kept being untrusted until the Release file was changed. This only effects sources not using InRelease and only apt-get, the apt binary downright refuses this course of actions, but it is a common way of adding external sources. Closes: 838779 (cherry picked from commit 84eec207be35b8c117c430296d4c212b079c00c1) LP: #1657440 (cherry picked from commit 5605c9880f36c764baaca59328777d34645a32fa) --- apt-pkg/acquire-item.cc | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'apt-pkg') diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index 906ed9d8e..6ac893b1b 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -1666,10 +1666,16 @@ void pkgAcqMetaSig::Done(string const &Message, HashStringList const &Hashes, } else if(MetaIndex->CheckAuthDone(Message) == true) { - if (TransactionManager->IMSHit == false) + auto const Releasegpg = GetFinalFilename(); + auto const Release = MetaIndex->GetFinalFilename(); + // if this is an IMS-Hit on Release ensure we also have the the Release.gpg file stored + // (previously an unknown pubkey) – but only if the Release file exists locally (unlikely + // event of InRelease removed from the mirror causing fallback but still an IMS-Hit) + if (TransactionManager->IMSHit == false || + (FileExists(Releasegpg) == false && FileExists(Release) == true)) { - TransactionManager->TransactionStageCopy(this, DestFile, GetFinalFilename()); - TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, MetaIndex->GetFinalFilename()); + TransactionManager->TransactionStageCopy(this, DestFile, Releasegpg); + TransactionManager->TransactionStageCopy(MetaIndex, MetaIndex->DestFile, Release); } } } -- cgit v1.2.3