CVE-2021-47154

Summary

The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

CVE Program Container

Additional References

• https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
• https://metacpan.org/pod/Net::CIDR::Lite
• https://github.com/stigtsp/Net-CIDR-Lite/commit/23b6ff0590dc279521863a502e890ef19a5a76fc
• https://metacpan.org/dist/Net-CIDR-Lite/changes
• https://lists.debian.org/debian-lts-announce/2024/03/msg00023.html

References

• https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
• https://metacpan.org/pod/Net::CIDR::Lite
• https://github.com/stigtsp/Net-CIDR-Lite/commit/23b6ff0590dc279521863a502e890ef19a5a76fc
• https://metacpan.org/dist/Net-CIDR-Lite/changes
• https://lists.debian.org/debian-lts-announce/2024/03/msg00023.html

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