SB2003051201 - Information disclosure in OpenSSH
Published: May 12, 2003 Updated: December 16, 2022
Security Bulletin ID
SB2003051201
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2003-0190)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the affected application sends an error message when a user does not exist. A remote attacker can determine valid usernames via a timing attack.
Remediation
Install update from vendor's website.
References
- http://www.securityfocus.com/bid/7467
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
- http://lab.mediaservice.net/advisory/2003-01-openssh.txt
- http://www.redhat.com/support/errata/RHSA-2003-222.html
- http://www.redhat.com/support/errata/RHSA-2003-224.html
- http://www.turbolinux.com/security/TLSA-2003-31.txt
- http://marc.info/?l=bugtraq&m=105172058404810&w=2
- http://marc.info/?l=bugtraq&m=106018677302607&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445