CVE-2021-29424
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
\
PublishedApr 6, 2021
First seenApr 6, 2021
How to fix
Update
- net\ \2.0000 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBJVLXJSWN6DKSF5ADUEERI6M23R3GGP/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JF4CYIZELC3NISB3RMV4OCI4GYBC557B/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7JIPQAY5OZ5D3DA7INQILU7SGHTHMWB/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| net\ \ | netmask_project ≤ v < 2.0000 | 2.0000 |
| fedoraproject fedora | 32, 33, 34 | — |
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