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 factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use…
Does this matter?
Lower severity and a low EPSS score (6.39%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 6.39% probability · 93th percentile
- CISA KEV
- Not listed
- Affected
- openpkg/openpkg · openssl/openssl · stunnel/stunnel
- Source
- cve@mitre.org
References
- ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt
- ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
- http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0130.htmlVendor Advisory
- http://crypto.stanford.edu/~dabo/papers/ssl-timing.pdf
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625
- http://marc.info/?l=bugtraq&m=104766550528628&w=2
- http://marc.info/?l=bugtraq&m=104792570615648&w=2
- http://marc.info/?l=bugtraq&m=104819602408063&w=2
- http://marc.info/?l=bugtraq&m=104829040921835&w=2
- http://marc.info/?l=bugtraq&m=104861762028637&w=2
- http://www.debian.org/security/2003/dsa-288
- http://www.gentoo.org/security/en/glsa/glsa-200303-23.xml
- http://www.kb.cert.org/vuls/id/997481Third Party Advisory, US Government Resource
- http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:035
- http://www.openpkg.com/security/advisories/OpenPKG-SA-2003.019.html
- http://www.openssl.org/news/secadv_20030317.txt
- http://www.redhat.com/support/errata/RHSA-2003-101.html
- http://www.redhat.com/support/errata/RHSA-2003-102.html
- http://www.securityfocus.com/archive/1/316165/30/25370/threaded
- http://www.securityfocus.com/archive/1/316165/30/25370/threaded
- http://www.securityfocus.com/archive/1/316165/30/25370/threaded
- http://www.securityfocus.com/archive/1/316165/30/25370/threaded
- http://www.securityfocus.com/archive/1/316577/30/25310/threaded
- http://www.securityfocus.com/archive/1/316577/30/25310/threaded
- http://www.securityfocus.com/archive/1/316577/30/25310/threaded
- http://www.securityfocus.com/archive/1/316577/30/25310/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A466
- ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt
- ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
- http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0130.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.