Fedora has issued an advisory on August 22: https://lists.fedoraproject.org/pipermail/package-announce/2013-August/114912.html I believe the issue is fixed upstream in 1.0.15. Mageia 2 and Mageia 3 are also affected. Reproducible: Steps to Reproduce:
Whiteboard: (none) => MGA3TOO, MGA2TOO
I have uploaded patched packages for Mageia 2 and 3. 1. Install perl-Module-Metadata 2. Run this command: man Module::Metadata 3. Check the DESCRIPTION (Should be this: "This module provides a standard way to gather metadata about a .pm file without executing unsafe code.") 4. Update perl-Module-Metadata from updates_testing 5. Repeat step #2 and check DESCRIPTION again. (This time it should say something like this: "This module provides a standard way to gather metadata about a .pm file through (mostly) static analysis and (some) code execution. When determining the version of a module, the $VERSION assignment is "eval"ed, as is traditional in the CPAN toolchain.") Suggested advisory: ======================== This update clarifies the module's documentation about the code it executes, i.e. it does "eval" a module to determine its version number. Previously it said that it did not execute unsafe code. References: http://lwn.net/Vulnerabilities/565572/ ======================== Updated packages in core/updates_testing: ======================== perl-Module-Metadata-1.0.9-1.1.mga2 perl-Module-Metadata-1.0.11-4.1.mga3 Source RPMs: perl-Module-Metadata-1.0.9-1.1.mga2.src.rpm perl-Module-Metadata-1.0.11-4.1.mga3.src.rpm
CC: (none) => mageiaHardware: i586 => AllVersion: Cauldron => 3Assignee: jquelin => qa-bugsWhiteboard: MGA3TOO, MGA2TOO => MGA2TOO has_procedure
Thanks Sander! Just making minor formatting changes to the advisory. Suggested advisory: ======================== This update clarifies the module's documentation about the code it executes, i.e. it does "eval" a module to determine its version number. Previously it said that it did not execute unsafe code (CVE-2013-1437). References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1437 https://lists.fedoraproject.org/pipermail/package-announce/2013-August/114912.html ======================== Updated packages in core/updates_testing: ======================== perl-Module-Metadata-1.0.9-1.1.mga2 perl-Module-Metadata-1.0.11-4.1.mga3 Source RPMs: perl-Module-Metadata-1.0.9-1.1.mga2.src.rpm perl-Module-Metadata-1.0.11-4.1.mga3.src.rpm
Testing mga3 64 Module::Metadata appears to be provided by perl package aswell as perl-Module-Metadata. Testing with this script.. use Module::Metadata; my $file = '/usr/lib/perl5/vendor_perl/5.16.2/Config/IniFiles.pm'; # information about a .pm file my $info = Module::Metadata->new_from_file( $file ); my $version = $info->version; # CPAN META 'provides' field for .pm files in a directory my $provides = Module::Metadata->provides( dir => 'lib', version => 2 ); print "$version\n"; print "$provides\n"; Just spits out a version number and a hash, don't laugh at my perl skillz. It does so though even without perl-Module-Metadata being installed. $ urpmq --whatprovides 'perl(Module::Metadata)' perl-Module-Metadata|perl-Module-Metadata|perl # urpmq --provides perl | grep Metadata perl(Module::Metadata)[== 1.0.9] It also appears to be providing the mga2 version in mga3. It looks like this will need to be updated too in order to close the CVE. # urpme perl-Module-Metadata removing perl-Module-Metadata-1.0.11-4.mga3.noarch removing package perl-Module-Metadata-1.0.11-4.mga3.noarch 1/1: removing perl-Module-Metadata-1.0.11-4.mga3.noarch # man Module::Metadata DESCRIPTION This module provides a standard way to gather metadata about a .pm file without executing unsafe code.
Whiteboard: MGA2TOO has_procedure => MGA2TOO has_procedure feedback
Assigning back to you David, not sure how best to handle this one. It is just updated man pages so might not be worthy of a perl update, but it does seem to need one to close the CVE.
CC: (none) => qa-bugsAssignee: qa-bugs => luigiwalser
Wrong assignee.
Assignee: luigiwalser => jquelin
Removing Mageia 2 from the whiteboard due to EOL. http://blog.mageia.org/en/2013/11/21/farewell-mageia-2/
Whiteboard: MGA2TOO has_procedure feedback => has_procedure feedback
Sorry for the time to answer - real life kicked in quite hard. I strongly oppose to doing a perl update to mageia 3 just to change a bit of documentation in a module. Rationale: 1- perl is a critical package, and I prefer limiting its update in mageia releases to the strict minimum 2- even more because qa is overwhelmed, and I'd rather not pile an uneeded update onto them 3- Module::Metadata is a very obscure package, that is not really used a lot (evn *I* didn't know about it before this bug report) 4- if you decide to use this module, most of the time you'll do on a safe module (that is, even eval-ing it won't cause any damage). Only modules crafted to abuse the eval-ing will be a problem, and those modules aren't legion (because of 3 above) 5- if you really care about security of a given module, you won't trust its documentation, but check the code before using it 6- finally, assigning a CVE to reword documentation is overkill to me Therefore, I propose to clsoe this bug as resolved/wontfix unless you provide me with very good reasons. Note: cauldron and mageia 4 have an updated Module::Metadata (even the one shipped with core perl).
Keywords: (none) => NEEDINFOCC: (none) => jquelin
Given Jerome's feedback, we can just update the external module (as it's already packaged) and say it's wontfix for perl itself. Advisory in Comment 2 (minus the Mageia 2 package of course).
Keywords: NEEDINFO => (none)CC: qa-bugs => (none)Assignee: jquelin => qa-bugsWhiteboard: has_procedure feedback => has_procedure
Testing complete mga3 32 & 64
Source RPM: perl-Module-Metadata-1.0.14-1.mga4.src.rpm => perl-Module-Metadata-1.0.11-4.1.mga3.src.rpmWhiteboard: has_procedure => has_procedure mga3-32-ok mga3-64-ok
Advisory uploaded. Validating. Could sysadmin please push to 3 updates Thanks
Keywords: (none) => validated_updateWhiteboard: has_procedure mga3-32-ok mga3-64-ok => has_procedure advisory mga3-32-ok mga3-64-okCC: (none) => sysadmin-bugs
Update pushed: http://advisories.mageia.org/MGASA-2014-0093.html
Status: NEW => RESOLVEDCC: (none) => tmbResolution: (none) => FIXED