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CVE-2003-0147
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining…
Medium5.0EPSS 7.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.8% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (19)
- DSA-288 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2003:101 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2003:102 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.openssl.org/news/secadv_20030317.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-200303-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 20030325 Fwd: APPLE-SA-2003-03-24 Samba, OpenSSL (opens in a new tab)mailing-listx_refsource_BUGTRAQvendor-advisoryx_refsource_APPLEx_transferred
- 20030317 [ADVISORY] Timing Attack on OpenSSL (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- MDKSA-2003:035 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
- http://crypto.stanford.edu/~dabo/papers/ssl-timing.pdf (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-200303-23 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- oval:org.mitre.oval:def:466 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- OpenPKG-SA-2003.019 (opens in a new tab)vendor-advisoryx_refsource_OPENPKGx_transferred
- GLSA-200303-24 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- IMNX-2003-7+-001-01 (opens in a new tab)vendor-advisoryx_refsource_IMMUNIXmailing-listx_refsource_BUGTRAQx_transferred
- 20030313 Vulnerability in OpenSSL (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20030320 [OpenPKG-SA-2003.026] OpenPKG Security Advisory (openssl) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- CLA-2003:625 (opens in a new tab)vendor-advisoryx_refsource_CONECTIVAx_transferred
- VU#997481 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20030313 OpenSSL Private Key Disclosure (opens in a new tab)mailing-listx_refsource_VULNWATCHx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2003-0147)Record last updated .