Nimble is a package manager for the Nim programming language. In Nim release versions before versions 1.2.10 and 1.4.4, nimble refresh fetches a list of Nimble packages over HTTPS by default. In case of error it falls back to a non-TLS URL http://irclogs.nim-lang.org/packages.json. An attacker able to perform MitM can deliver a modified package list containing malicious software packages. If the packages are installed and used the attack escalates to untrusted code execution.
The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nim | Nim-lang | * | 1.2.10 (excluding) |
| Nim | Nim-lang | 1.4.0 (including) | 1.4.4 (excluding) |
| Nim | Ubuntu | bionic | * |
| Nim | Ubuntu | groovy | * |
| Nim | Ubuntu | hirsute | * |
| Nim | Ubuntu | impish | * |
| Nim | Ubuntu | lunar | * |
| Nim | Ubuntu | mantic | * |
| Nim | Ubuntu | trusty | * |
| Nim | Ubuntu | xenial | * |