VULNERABILITY INTELLIGENCE
CVE-2003-0147
CVSS score5 MEDIUM
EPSS probability7.06%
CISA KEVNot currently listed
Published2003-03-31
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:N/A:N
Description
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).