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CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0

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. browserify-sign es un paquete para duplicar la funcionalidad de las funciones de clave pública criptográfica del nodo, gran parte de esto se basa en el trabajo de Fedor Indutny en indutny/tls.js. Un problema de verificación de límite superior en la función `dsaVerify` permite a un atacante construir firmas que pueden verificarse con éxito mediante cualquier clave pública, lo que lleva a un ataque de falsificación de firmas. • https://github.com/browserify/browserify-sign/commit/85994cd6348b50f2fd1b73c54e20881416f44a30 https://github.com/browserify/browserify-sign/security/advisories/GHSA-x9w5-v3q2-3rhw https://lists.debian.org/debian-lts-announce/2023/10/msg00040.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ https://www.debian.org/security/2023/dsa-5539 https • CWE-347: Improper Verification of Cryptographic Signature •