Home/CVE/The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined th
CVE

CVE-2020-8252

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined th

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.

HIGH · CVSS 7.8 EPSS 0.00181
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

5
nodejs node.js>= 10.0.0 and < 10.22.1
nodejs node.js>= 12.0.0 and < 12.18.4
nodejs node.js>= 14.0.0 and < 14.9.0
opensuse leapall versions
fedoraproject fedoraall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Sep 2020 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

13
rhsaRHSA-2021:0548Moderate
rhsaRHSA-2021:0521Moderate
suse-csafopenSUSE-SU-2020:1660-1
suse-csafopenSUSE-SU-2020:1616-1
suse-csafSUSE-SU-2020:2829-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.htmlMailing ListThird Party Advisory
https://hackerone.com/reports/965914Permissions RequiredThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/Vendor Advisory
https://security.gentoo.org/glsa/202009-15Third Party Advisory
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