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CVE-2020-14967: Improper Restriction of Operations within the Bounds of a Memory Buffer

June 22, 2020 (updated July 24, 2020)

An issue was discovered in the jsrsasign package for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending \0 bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-14967

Code Behaviors & Features

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Affected versions

All versions before 8.0.18

Fixed versions

  • 8.0.18

Solution

Upgrade to version 8.0.18 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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Source file

npm/jsrsasign/CVE-2020-14967.yml

Spotted a mistake? Edit the file on GitLab.

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