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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| sccache | rust | < 0.4.0 | 0.4.0 |
The vulnerability stems from the client sending its environment variables (including LD_PRELOAD) to the server during compilation requests. The code in src/commands.rs lines 371-376 explicitly includes env_vars in the Compile request struct. A FIXME comment in src/cmdline.rs:279 acknowledges the risk of not sanitizing LD_PRELOAD. The server's execution environment inherits these variables, enabling privilege escalation when running as root. The function responsible for constructing and sending these tainted environment variables is the root cause.
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