CVE-2020-8265

Publication date 6 January 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nodejs	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not affected
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Fixed 10.19.0~dfsg-3ubuntu1.1
	18.04 LTS bionic	Fixed 8.10.0~dfsg-2ubuntu0.4+esm2
	16.04 LTS xenial	Fixed 4.2.6~dfsg-1ubuntu4.2+esm2
	14.04 LTS trusty	Not affected

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Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-6380-1
Node.js vulnerabilities
19 September 2023