CVE-2003-0190

OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.

• CWE-203

• http://lab.mediaservice.net/advisory/2003-01-openssh.txtBroken Link
• http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.htmlBroken Link
• http://marc.info/?l=bugtraq&m=105172058404810&w=2Third Party Advisory
• http://marc.info/?l=bugtraq&m=106018677302607&w=2Third Party Advisory
• http://www.redhat.com/support/errata/RHSA-2003-222.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2003-224.htmlBroken Link
• http://www.securityfocus.com/bid/7467Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
• http://www.turbolinux.com/security/TLSA-2003-31.txtBroken Link
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfThird Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445Broken Link
• http://lab.mediaservice.net/advisory/2003-01-openssh.txtBroken Link
• http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.htmlBroken Link
• http://marc.info/?l=bugtraq&m=105172058404810&w=2Third Party Advisory
• http://marc.info/?l=bugtraq&m=106018677302607&w=2Third Party Advisory
• http://www.redhat.com/support/errata/RHSA-2003-222.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2003-224.htmlBroken Link
• http://www.securityfocus.com/bid/7467Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
• http://www.turbolinux.com/security/TLSA-2003-31.txtBroken Link
• https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfThird Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445Broken Link

Published

May 12, 2003

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2003-0179Buffer overflow in the COM Object Control Handler for Lotus …
• CVE-2003-0180Lotus Domino Web Server (nhttp.exe) before 6.0.1 allows remo…
• CVE-2003-0181Lotus Domino Web Server (nhttp.exe) before 6.0.1 allows remo…
• CVE-2003-0187The connection tracking core of Netfilter for Linux 2.4.20, …
• CVE-2003-0188lv reads a .lv file from the current working directory, whic…
• CVE-2003-0189The authentication module for Apache 2.0.40 through 2.0.45 o…
• CVE-2003-0192Apache 2 before 2.0.47, and certain versions of mod_ssl for …
• CVE-2003-0193msxlsview.sh in xlsview for catdoc 0.91 and earlier allows l…
• CVE-2003-0194tcpdump does not properly drop privileges to the pcap user w…
• CVE-2003-0195CUPS before 1.1.19 allows remote attackers to cause a denial…
• CVE-2003-0196Multiple buffer overflows in Samba before 2.2.8a may allow r…
• CVE-2003-0197Buffer overflow gds_lock_mgr of Interbase Database 6.x allow…