CVE-2020-8252

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 18 Sept 2020, 20:11
Last modified:30 Apr 2025, 22:24

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.18% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Sept 2020, 20:11
Published
Vulnerability first disclosed
30 Apr 2025, 22:24
Last Modified
Vulnerability information updated

Description

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.18%• Percentile: 39%

Techniques & Countermeasures

  • CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

    The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected Systems

  • fedoraproject•fedora

    33

  • nodejs•node

    ≥ 4.0, < 4.* | ≥ 5.0, < 5.* | ≥ 6.0, < 6.* | ≥ 7.0, < 7.* | ≥ 8.0, < 8.* | ≥ 9.0, < 9.* | ≥ 10.0, < 10.22.1 | ≥ 11.0, < 11.* | ≥ 12.0, < 12.18.4 | ≥ 13.0, < 13.* | ≥ 14.0, < 14.9.0

  • nodejs•node.js

    ≥ 10.0.0, < 10.22.1 | ≥ 12.0.0, < 12.18.4 | ≥ 14.0.0, < 14.9.0

  • opensuse•leap

    15.2

References (8)