NULL Pointer Dereference

Affecting node package, versions [15.0.0,15.14.0) || [13.0.0,14.16.1) || [12.0.0,12.22.1) || [,10.24.1)

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Overview

node is a JavaScript runtime built on Chrome's V8 JavaScript engine.

Affected versions of this package are vulnerable to NULL Pointer Dereference. If sent a maliciously crafted renegotiation ClientHello message from a client, an OpenSSL TLS server may crash. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a Denial of Service.

Remediation

Upgrade node to version 15.14.0, 14.16.1, 12.22.1, 10.24.1 or higher.

References

CVSS Score

5.9
medium severity
  • Attack Vector
    Network
  • Attack Complexity
    High
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Credit
Nokia
CVE
CVE-2021-3449
CWE
CWE-476
Snyk ID
SNYK-UPSTREAM-NODE-1243766
Published
07 Apr, 2021