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.
References (6)
Core 6
Core References
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00040.html
Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/
Release Notes
https://lists.fedoraproject.org/archives/list/[email protected]/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/
Third Party Advisory
https://www.debian.org/security/2023/dsa-5539
Third Party Advisory x_refsource_confirm
https://github.com/browserify/browserify-sign/security/advisories/GHSA-x9w5-v3q2-3rhw
Third Party Advisory x_refsource_misc
https://github.com/browserify/browserify-sign/commit/85994cd6348b50f2fd1b73c54e20881416f44a30
Scores
CVSS v3
6.5
EPSS
0.0041
EPSS Percentile
61.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
CWE
CWE-347
Status
published
Products (4)
browserify/browserify-sign
< 4.2.2
debian/debian_linux
11.0
debian/debian_linux
12.0
npm/browserify-sign
2.6.0 - 4.2.2npm
Published
Oct 26, 2023
Tracked Since
Feb 18, 2026