Home/CVE/OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key
CVE

CVE-2003-0147

OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key

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).

MEDIUM · CVSS 5 EPSS 0.28737
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0

Affected Products & Versions

3
openpkgall versions
opensslall versions
stunnelall versions

Scoring & Timeline

5
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Published to NVD31 Mar 2003 · 05:00 AM

Vendor Advisories

5
rhsaRHSA-2003:102Important
rhsaRHSA-2003:101Important
rhsaRHSA-2003:205Important
rhsaRHSA-2003:117Important
rhsaRHSA-2003:116Important
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