Bug 827737 - yum ignores gpgcheck=1 flag.
yum ignores gpgcheck=1 flag.
Product: Fedora
Classification: Fedora
Component: yum (Show other bugs)
x86_64 Linux
unspecified Severity high
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Assigned To: Fedora Packaging Toolset Team
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-06-02 13:58 EDT by Graham Cole
Modified: 2014-01-21 18:22 EST (History)
6 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2013-08-01 03:56:56 EDT
Type: Bug
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Description Graham Cole 2012-06-02 13:58:05 EDT
Description of problem:
yum will install or localinstall specified rpms that have no gpg signature or a signature that is not included in the database.

Version-Release number of selected component (if applicable):

How reproducible:
every time

Steps to Reproduce:
1. Install a clean system
2. yum install http://rpm.livna.org/livna-release.rpm
3. press 'y' when prompted
Actual results:
The install goes forward and the rpm is installed

Expected results:
The install should fail since it's a clean system and the livna gpg key is not installed.

Additional info:

[root@dagon ~]# yum install http://rpm.livna.org/livna-release.rpm
Loaded plugins: langpacks, presto, refresh-packagekit
livna-release.rpm                                        | 3.9 kB     00:00     
Examining /var/tmp/yum-root-KumJGl/livna-release.rpm: 1:livna-release-1-1.noarch
Marking /var/tmp/yum-root-KumJGl/livna-release.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package livna-release.noarch 1:1-1 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

 Package              Arch          Version         Repository             Size
 livna-release        noarch        1:1-1           /livna-release        2.4 k

Transaction Summary
Install  1 Package

Total size: 2.4 k
Installed size: 2.4 k
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Check
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : 1:livna-release-1-1.noarch                                   1/1 
  Verifying  : 1:livna-release-1-1.noarch                                   1/1 

  livna-release.noarch 1:1-1
Comment 1 Graham Cole 2012-06-04 00:37:36 EDT
Looks like localpkg_gpgcheck is defaulting to 0.  I wasn't aware of this option previously. I see this issue mentioned in 717566, so it seems to be somewhat of an issue, but I gather yum itself is not being looked at, only PackageKit.

So I have a workaround to get the desired behavior, however I would advocate for the localpkg_gpgcheck=1 to be the default as I could have botched myself expecting that the signature would be checked.  This seems to be a change in behavior over previous versions of yum/fedora and seeing as there is no mention of an option to force a gpg check in the primary yum manpage (only the yum.conf manpage). In summary, this change in default behavior creates a real possibility for users to do dangerous things unintentionally.
Comment 2 Jon Dowland 2013-02-15 03:11:12 EST
I hit this problem yesterday but I've only just discovered this bug. I really think localpkg_gpgcheck should default to 1. The signature error message for failing to install a package could hint about localpkg_gpgcheck or --nogpgcheck (it's a shame there isn't a corresponding --gpgcheck command line flag) to minimize inconvenience for people who don't care. It would make enabling EPEL and things like that slightly more inconvenient, but as things stand there's very little way to be sure that you've got the right EPEL, since you cannot verify the GPG signature anyway. (no signatures on the signing key!)
Comment 3 Fedora End Of Life 2013-07-03 22:17:43 EDT
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Comment 4 Fedora End Of Life 2013-08-01 03:57:04 EDT
Fedora 17 changed to end-of-life (EOL) status on 2013-07-30. Fedora 17 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

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