USN-4089-1: Rack vulnerability
First published: Wed Aug 07 2019(Updated: )
It was discovered that Rack incorrectly handled carefully crafted requests. A remote attacker could use this issue to execute a cross-site scripting (XSS) attack.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/ruby-rack | <1.6.4-4ubuntu0.1 | 1.6.4-4ubuntu0.1 |
| Ubuntu OpenSSH Client | =18.04 | |
| All of | ||
| ubuntu/ruby-rack | <1.6.4-3ubuntu0.1 | 1.6.4-3ubuntu0.1 |
| Ubuntu OpenSSH Client | =16.04 |
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Reference Links
Frequently Asked Questions
What is the severity of USN-4089-1?
The severity of USN-4089-1 is classified as critical due to the potential for cross-site scripting (XSS) attacks.
How do I fix USN-4089-1?
To fix USN-4089-1, upgrade the ruby-rack package to version 1.6.4-4ubuntu0.1 or 1.6.4-3ubuntu0.1 depending on your Ubuntu version.
Which software versions are affected by USN-4089-1?
USN-4089-1 affects ruby-rack versions prior to 1.6.4-4ubuntu0.1 for Ubuntu 18.04 and versions prior to 1.6.4-3ubuntu0.1 for Ubuntu 16.04.
Can USN-4089-1 be exploited remotely?
Yes, USN-4089-1 can be exploited remotely by attackers through specially crafted requests.
What type of vulnerability is addressed in USN-4089-1?
USN-4089-1 addresses a cross-site scripting (XSS) vulnerability in the Rack library.
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