crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit...
Moderate severity
Unreviewed
Published
May 17, 2022
to the GitHub Advisory Database
•
Updated Jan 28, 2023
Description
Published by the National Vulnerability Database
Jan 27, 2012
Published to the GitHub Advisory Database
May 17, 2022
Last updated
Jan 28, 2023
crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts.
References