7.8
HIGH
CVE-2020-8252
Node.js Libuv Realpath Buffer Overflow
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.

INFO

Published Date :

Sept. 18, 2020, 9:15 p.m.

Last Modified :

Nov. 7, 2023, 3:26 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2020-8252 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Opensuse leap
1 Nodejs node.js
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-8252 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8252 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference HackerOne https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ [No types assigned]
    Removed Reference HackerOne https://lists.fedoraproject.org/archives/list/[email protected]/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
  • Modified Analysis by [email protected]

    May. 24, 2022

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20201009-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20201009-0004/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 13, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 12, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2020

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20201009-0004/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 07, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/4548-1/ No Types Assigned https://usn.ubuntu.com/4548-1/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 05, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 30, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4548-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 30, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://hackerone.com/reports/965914 No Types Assigned https://hackerone.com/reports/965914 Permissions Required, Third Party Advisory
    Changed Reference Type https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/ No Types Assigned https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/ Vendor Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202009-15 No Types Assigned https://security.gentoo.org/glsa/202009-15 Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* versions from (including) 10.0.0 up to (excluding) 10.22.1 *cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* versions from (including) 12.0.0 up to (excluding) 12.18.4 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 14.0.0 up to (excluding) 14.9.0
  • CVE Modified by [email protected]

    Sep. 30, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202009-15 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-8252 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.00%

score

0.16459

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability