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CVE-2020-8265

HIGH
8.1
CVSS Score
Published: January 6, 2021 at 09:01 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
5 products affected across 5 vendorsDebian LinuxFedoraNode.js

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Severity
HIGH8.1
Exploit prediction
EPSS 9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.0
Fedora· Fedora Projectrpm
95%
3233
Node.js· Node.js
95%
10.0 ≤ v < 10.23.110.0.0 ≤ v < 10.23.111.0 ≤ v < 11.*12.0 ≤ v < 12.20.112.0.0 ≤ v < 12.20.113.0 ≤ v < 13.*14.0 ≤ v < 14.15.414.0.0 ≤ v < 14.15.415.0 ≤ v < 15.5.115.0.0 ≤ v < 15.5.14.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.*10.011.012.013.014.015.04.05.06.07.08.09.0
Affected range stops below 10.23.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.20.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.15.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.5.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.*, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.*, so it looks safe — our inference, not a vendor statement
GraalVM· Oracle
95%
19.3.420.3.0
Sinec Infrastructure Network Services· Siemens
95%
v < 1.0.1.1
Affected range stops below 1.0.1.1, so it looks safe — our inference, not a vendor statement

References (9)

x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/988103
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4I6MZNC7C7VIDQR267OL4TVCI3ZKAC4/
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://nodejs.org/en/blog/vulnerability/january-2021-security-releases/
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202101-07
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210212-0003/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4826

CVSS

8.1HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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