This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
CVE-2021-23386 - Medium Severity Vulnerability
An abstract-encoding compliant module for encoding / decoding DNS packets
Library home page: https://registry.npmjs.org/dns-packet/-/dns-packet-1.3.1.tgz
Path to dependency file: /client/package.json
Path to vulnerable library: /client/node_modules/dns-packet/package.json
Dependency Hierarchy: - webpack-dev-server-3.1.11.tgz (Root Library) - bonjour-3.5.0.tgz - multicast-dns-6.2.3.tgz - :x: **dns-packet-1.3.1.tgz** (Vulnerable Library)
Found in HEAD commit: 2afe18be24d4f77034e10f011e2885a5f1f53cb9
Found in base branch: master
This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
Publish Date: 2021-05-20
URL: CVE-2021-23386
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23386
Release Date: 2021-05-20
Fix Resolution (dns-packet): 1.3.2
Direct dependency fix Resolution (webpack-dev-server): 3.1.12
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.