CVE-2020-8265 Information

Description

Node.js versions before 10.23.1 12.20.1 14.15.4 15.5.1 are vulnerable to a use-after-free bug in its TLS implementation. When writing to a TLS enabled socket node::StreamBase::Write calls node::TLSWrap::DoWrite with a freshly allocated WriteWrap object as first argument. If the DoWrite method does not return an error this object is passed back to the caller as part of a StreamWriteResult structure. This may be exploited to corrupt memory leading to a Denial of Service or potentially other exploits.

CVSS Vector

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

Reference

https://nodejs.org/en/blog/vulnerability/january-2021-security-releases/ https://hackerone.com/reports/988103 https://www.debian.org/security/2021/dsa-4826 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K4I6MZNC7C7VIDQR267OL4TVCI3ZKAC4/ https://security.gentoo.org/glsa/202101-07 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/ https://www.oracle.com/security-alerts/cpujan2021.html https://security.netapp.com/advisory/ntap-20210212-0003/ https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1