Summary
Dave Rolsky discovered that Net-CIDR did not properly sanitize IP
addresses. An attacker could possibly use this to bypass IP-based
restrictions.
Fixed packages 6
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | libnet-cidr-perl | 0.21-1ubuntu0.2 |
| Ubuntu · 24.04 LTS 24.04:LTS | libnet-cidr-perl | 0.21-2ubuntu0.2 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | libnet-cidr-perl | 0.17-1ubuntu0.14.04.1~esm2 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | libnet-cidr-perl | 0.17-1ubuntu0.16.04.1~esm2 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | libnet-cidr-perl | 0.18-1ubuntu0.1~esm2 |
| Ubuntu · Pro 20.04 LTS Pro:20.04:LTS | libnet-cidr-perl | 0.20-1ubuntu0.1~esm2 |
References
-
report
https://ubuntu.com/security/CVE-2021-4456