CVE-2015-3408: Module::Signature before 0.74 allows remote attackers to execute arbitrary shell commands via a crafted SIG...

Security readout for executives and security teams

This CVE affects Perl's Module::Signature when it processes a malicious SIGNATURE file. In vulnerable versions, that file can cause arbitrary shell commands to run during checksum generation. The business risk is highest where servers, build systems, or developer workstations process signed Perl distributions from untrusted sources. Exposure is likely limited to Perl environments using vulnerable Module::Signature versions to verify or process signed distributions, especially CI, packaging, or administrative systems that handle external CPAN-style content. Prioritize remediation on build, packaging, and administrative systems because successful exploitation could execute commands in trusted automation contexts. Internet-facing exposure is not established from the sources. Mitigation focus: Upgrade Module::Signature beyond the vulnerable range identified by vendor guidance.; Apply Debian DSA-3261 or Ubuntu USN-2607-1 package updates where applicable.; Avoid processing untrusted signed Perl distributions on sensitive systems until patched..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.