| Name | CVE-2021-47154 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3770-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libnet-cidr-lite-perl (PTS) | buster | 0.21-2 | vulnerable |
| buster (security) | 0.21-2+debu10u1 | fixed | |
| bullseye | 0.22-1 | fixed | |
| bookworm, sid, trixie | 0.22-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libnet-cidr-lite-perl | source | buster | 0.21-2+debu10u1 | DLA-3770-1 | ||
| libnet-cidr-lite-perl | source | (unstable) | 0.22-1 |
https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/#net-cidr-litehttpsmetacpanorgreleasenet-cidr-lite
https://github.com/stigtsp/Net-CIDR-Lite/commit/23b6ff0590dc279521863a502e890ef19a5a76fc (0.22)