USN-6712-1: Net::CIDR::Lite vulnerability

Releases

• Ubuntu 20.04 LTS

Packages

• libnet-cidr-lite-perl - module for merging IPv4 or IPv6 CIDR address ranges

Details

It was discovered that Net::CIDR::Lite incorrectly handled extra zero
characters at the beginning of IP address strings. A remote attacker could
possibly use this issue to bypass access controls.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

• libnet-cidr-lite-perl - 0.21-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2021-47154