CVE-2020-8265

Published: 6 January 2021

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.

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
nodejs Launchpad, Ubuntu, Debian	bionic	Released (8.10.0~dfsg-2ubuntu0.4+esm2) Available with Ubuntu Pro
	focal	Released (10.19.0~dfsg-3ubuntu1.1)
	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	upstream	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Not vulnerable (18.13.0+dfsg1-1ubuntu2)
	trusty	Not vulnerable (code not present)
	xenial	Released (4.2.6~dfsg-1ubuntu4.2+esm2) Available with Ubuntu Pro
	jammy	Not vulnerable (12.22.9~dfsg-1ubuntu3)
	impish	Ignored (end of life)
	mantic	Not vulnerable (18.13.0+dfsg1-1ubuntu2)

Severity score breakdown

Parameter	Value
Base score	8.1
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

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