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CVE-2020-36443: Use of Uninitialized Resource in libp2p-deflate

August 25, 2021

An issue was discovered in the libp2p-deflate crate before 0.27.1 for Rust. An uninitialized buffer is passed to AsyncRead::poll_read(), which is a user-provided trait function.

References

  • github.com/advisories/GHSA-gvcp-948f-8f2p
  • github.com/libp2p/rust-libp2p
  • nvd.nist.gov/vuln/detail/CVE-2020-36443
  • rustsec.org/advisories/RUSTSEC-2020-0123.html

Code Behaviors & Features

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Affected versions

All versions before 0.27.1

Fixed versions

  • 0.27.1

Solution

Upgrade to version 0.27.1 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-908: Use of Uninitialized Resource

Source file

cargo/libp2p-deflate/CVE-2020-36443.yml

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