Vulnerability in Browserify Browserify-Sign
CVE-2023-46234
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.
EPSS: 0.005 (40.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Browserify Browserify-sign — versions >= 2.6.0, <= 4.2.1
- Debian Debian_linux — versions 11.0, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Release Notes)
- security-advisories@github.com (Release Notes)
Frequently asked questions
- What is CVE-2023-46234?
- CVE-2023-46234 is a medium-severity vulnerability in Browserify Browserify-Sign, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.5/10. Published 2023-10-26.
- How severe is CVE-2023-46234?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-46234 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.