VDB
CVE-2021-29424
CVE-2021-29424
PUBLISHED
CVSS 7.5 HIGH
The Net::Netmask module before 2.0000 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.
EPSS 1.80% · 78.3th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
1.80%
78.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | libnetwork-ipv4addr-perl | 0, 0.10.ds-2 |
| Ubuntu:24.04:LTS | libnetwork-ipv4addr-perl | 0, 0.10.ds-4 |
| Ubuntu:20.04:LTS | libnet-netmask-perl | 0, 1.9104-1 |
| Ubuntu:20.04:LTS | libnetwork-ipv4addr-perl | 0.10.ds-3, 0 |
| Ubuntu:22.04:LTS | libnetwork-ipv4addr-perl | 0.10.ds-3.1, 0 |
| Ubuntu:18.04:LTS | libnet-netmask-perl | 1.9022-1, 0 |
| Ubuntu:18.04:LTS | libnetwork-ipv4addr-perl | 0, 0.10.ds-2 |
| Ubuntu:16.04:LTS | libnet-netmask-perl | 1.9021-1, 1.9022-1, 0 |
| Ubuntu:25.10 | libnetwork-ipv4addr-perl | 0.10.ds-4, 0 |
Timeline
- Mar 29, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Dec 30, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 3, 2022 EPSS Score
- May 5, 2022 EPSS Score
- Jul 7, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 12, 2022 EPSS Score
References
- https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/ third-party-advisory
- https://metacpan.org/changes/distribution/Net-Netmask#L11-22 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29424 third-party-advisory
- https://ubuntu.com/security/CVE-2021-29424 advisory