The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in...
Moderate severity
Unreviewed
Published
May 17, 2022
to the GitHub Advisory Database
•
Updated Jan 29, 2023
Description
Published by the National Vulnerability Database
Jun 12, 2015
Published to the GitHub Advisory Database
May 17, 2022
Last updated
Jan 29, 2023
The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.
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