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CVE-2018-20997: Use after free in openssl

August 25, 2021 (updated June 13, 2023)

An issue was discovered in the openssl crate before 0.10.9 for Rust. A use-after-free occurs in CMS Signing.

References

  • github.com/advisories/GHSA-xjxc-vfw2-cg96
  • github.com/sfackler/rust-openssl
  • github.com/sfackler/rust-openssl/pull/942
  • nvd.nist.gov/vuln/detail/CVE-2018-20997
  • rustsec.org/advisories/RUSTSEC-2018-0010.html

Code Behaviors & Features

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Affected versions

All versions starting from 0.10.8 before 0.10.9

Fixed versions

  • 0.10.9

Solution

Upgrade to version 0.10.9 or above.

Impact 9.8 CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-416: Use After Free

Source file

cargo/openssl/CVE-2018-20997.yml

Spotted a mistake? Edit the file on GitLab.

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