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CVE-2020-36205: Memory handling issues in xcb

August 25, 2021 (updated February 13, 2023)

An issue was discovered in the xcb crate through 2020-12-10 for Rust. base::Error does not have soundness. Because of the public ptr field, a use-after-free or double-free can occur.

References

  • github.com/advisories/GHSA-c8hq-x4mm-p6q6
  • github.com/rtbo/rust-xcb
  • github.com/rtbo/rust-xcb/issues/93
  • github.com/rust-x-bindings/rust-xcb/issues/93
  • nvd.nist.gov/vuln/detail/CVE-2020-36205
  • rustsec.org/advisories/RUSTSEC-2020-0097.html

Code Behaviors & Features

Detect and mitigate CVE-2020-36205 with GitLab Dependency Scanning

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Affected versions

All versions before 1.0.0

Fixed versions

  • 1.0.0

Solution

Upgrade to version 1.0.0 or above.

Impact 5.5 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-415: Double Free
  • CWE-416: Use After Free

Source file

cargo/xcb/CVE-2020-36205.yml

Spotted a mistake? Edit the file on GitLab.

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