CVE-2023-46234

browserify-sign vulnerable via an upper bound check issue in `dsaVerify` that leads to a signature forgery attack

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.53%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org Third-Party Advisory debian.org
Affected: browserify browserify-sign
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2023-46234?
CVE-2023-46234 has been scored as a medium severity vulnerability.
How to fix CVE-2023-46234?
To fix CVE-2023-46234, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-46234 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-46234 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-46234?
CVE-2023-46234 affects browserify browserify-sign.
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