SB2025032612 - Debian update for ruby-rack 

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Main Vulnerability Database SB2025032612

SB2025032612 - Debian update for ruby-rack

Published: March 26, 2025

Security Bulletin ID SB2025032612
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) CRLF injection (CVE-ID: CVE-2025-25184)

The vulnerability allows a remote user to manipulate data log entries.

The vulnerability exists due to insufficient validation of attacker-supplied data in Rack::CommonLogger. A remote user can pass specially crafted authorization credentials containing CR-LF characters to the Rack::Auth::Basic method, which stores this info into the to the env['REMOTE_USER'] variable. If the application accepts CR-LF characters in user name, a remote user can manipulate data log entries.


2) Improper Output Neutralization for Logs (CVE-ID: CVE-2025-27111)

The vulnerability allows a remote attacker to manipulate log entries.

The vulnerability exists due to improper input validation of the X-Sendfile-Type header in Rack::Sendfile when handling. A remote attacker can send specially crafted data containing newline characters via the affected header and manipulate log files.


3) Path traversal (CVE-ID: CVE-2025-27610)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in Rack::Static. A remote attacker can read arbitrary files on the system.


Remediation

Install update from vendor's website.

References