| Name | CVE-2021-47155 |
| Description | The Net::IPV4Addr module 0.10 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libnetwork-ipv4addr-perl (PTS) | jessie, stretch | 0.10.ds-2 | vulnerable |
| buster | 0.10.ds-3 | vulnerable |
| bullseye | 0.10.ds-3.1 | vulnerable |
| sid, trixie, bookworm | 0.10.ds-4 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[bookworm] - libnetwork-ipv4addr-perl <no-dsa> (Minor issue)
[bullseye] - libnetwork-ipv4addr-perl <no-dsa> (Minor issue)
[buster] - libnetwork-ipv4addr-perl <postponed> (Minor issue, revisit when fix is available)
https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/#net-ipv4addrhttpsmetacpanorgreleasenet-ipv4addr
[stretch] - libnetwork-ipv4addr-perl <postponed> (Minor issue, recheck when fixed upstream)
[jessie] - libnetwork-ipv4addr-perl <postponed> (Minor issue, recheck when fixed upstream)