CVE-2023-46234
browserify-sign vulnerable via an upper bound check issue in `dsaVerify` that leads to a signature forgery attack
- State
- Published
- Severity
- 6.5 Medium
- Published
- Oct 26, 2023
- Updated
- Feb 13, 2025
- Reserved
- Oct 19, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-347 Improper Verification of Cryptographic Signature
Affected Products
| Product | Versions |
|---|---|
browserify-signbrowserify |
|
References
- 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/
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