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  5. CVE-2020-8244

CVE-2020-8244: Out-of-bounds Read

August 30, 2020 (updated July 1, 2021)

A buffer over-read vulnerability exists in bl which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-8244

Code Behaviors & Features

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Affected versions

All versions before 1.2.3, all versions starting from 2.0.0 before 2.2.1, all versions starting from 3.0.0 before 3.0.1, all versions starting from 4.0.0 before 4.0.3

Fixed versions

  • 1.2.3
  • 2.2.1
  • 3.0.1
  • 4.0.3

Solution

Upgrade to versions 1.2.3, 2.2.1, 3.0.1, 4.0.3 or above.

Impact 6.5 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-125: Out-of-bounds Read

Source file

npm/bl/CVE-2020-8244.yml

Spotted a mistake? Edit the file on GitLab.

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