SB2020011023 - Fedora EPEL 7 update for rubygem-rack
Published: January 10, 2020 Updated: April 25, 2025
Security Bulletin ID
SB2020011023
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
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-2019-16782)
The vulnerability allows a remote attacker to perform a hijack victim's session.
The vulnerability exists due to an indexing issue in Rack (RubyGem rack) when processing user sessions. A remote attacker can guess session identifier and hijack victim's session.
Remediation
Install update from vendor's website.