---
cve: "CVE-2023-46234"
severity: "MEDIUM"
cvss: 6.5
epss: "0.6%"
vendor: "browserify"
kev: false
exploited: false
published: "2023-10-26 15:15:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-11-10T20:35:27+01:00"
---

# CVE-2023-46234

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

browserify-sign is a package to duplicate the functionality of node's crypto public key functions, much of this is based on Fedor Indutny's work on indutny/tls.js. An upper bound check issue in `dsaVerify` function allows an attacker to construct signatures that can be successfully verified by any public key, thus leading to a signature forgery attack. All places in this project that involve DSA verification of user-input signatures will be affected by this vulnerability. This issue has been patched in version 4.2.2.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2025-02-13 17:14:23
- CNA-CVSS: **6.5** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`)

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Schwachstellen-Klasse

- **CWE-347** — Improper Verification of Cryptographic Signature
  The product does not verify, or incorrectly verifies, the cryptographic signature for data.

## Angriffsmuster (CAPEC)

- [CAPEC-463 — Padding Oracle Crypto Attack](https://capec.mitre.org/data/definitions/463.html) _(Severity: High)_
- [CAPEC-475 — Signature Spoofing by Improper Validation](https://capec.mitre.org/data/definitions/475.html) _(Severity: High)_

## Patch verfügbar (OSV)

- 85994cd6348b50f2fd1b73c54e20881416f44a30 (Commit)

## BSI-Hinweise (deutsch)

- [Atlassian Confluence: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2024-3508) — _BSI-Einstufung: mittel_
  Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Atlassian Confluence ausnutzen, um einen Denial of Service Angriff durchzuführen, vertrauliche Informationen preiszugeben und Sicherheitsmaßnahmen zu umgehen.
- [Red Hat OpenShift distributed tracing: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2023-2782) — _BSI-Einstufung: mittel_
  Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat OpenShift distributed tracing ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

## Referenzen

- <https://github.com/browserify/browserify-sign/security/advisories/GHSA-x9w5-v3q2-3rhw>
- <https://github.com/browserify/browserify-sign/commit/85994cd6348b50f2fd1b73c54e20881416f44a30>
- <https://lists.debian.org/debian-lts-announce/2023/10/msg00040.html>
- <https://www.debian.org/security/2023/dsa-5539>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2023-46234/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_