CVE-2023-46234

Name: CVE-2023-46234
Creator: NVD / NIST
Published: 2023-10-26T15:15:09.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2023-46234 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Browserify	Browserify-Sign	< 4.2.2
Debian	Debian Linux	11.0
Debian	Debian Linux	12.0

References

https://github.com/browserify/browserify-sign/commit/85994cd6348b50f2fd1b73c54e20881416f44a30Third Party Advisory
https://github.com/browserify/browserify-sign/security/advisories/GHSA-x9w5-v3q2-3rhwThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00040.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/Release Notes
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/Release Notes
https://www.debian.org/security/2023/dsa-5539Third Party Advisory
https://github.com/browserify/browserify-sign/commit/85994cd6348b50f2fd1b73c54e20881416f44a30Third Party Advisory
https://github.com/browserify/browserify-sign/security/advisories/GHSA-x9w5-v3q2-3rhwThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00040.htmlThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/Release Notes
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/Release Notes
https://www.debian.org/security/2023/dsa-5539Third Party Advisory

Timeline

Published: Oct 26, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-46234?

How severe is CVE-2023-46234?

CVE-2023-46234 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2023-46234?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-46234?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST