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Ubuntu Security Notice USN-4561-1

Ubuntu Security Notice USN-4561-1
Posted Oct 1, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4561-1 - It was discovered that Rack incorrectly handled certain paths. An attacker could possibly use this issue to obtain sensitive information. It was discovered that Rack incorrectly validated cookies. An attacker could possibly use this issue to forge a secure cookie.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2020-8161, CVE-2020-8184
MD5 | 1647278df1e467bf98dbfb76e8bf528f

Ubuntu Security Notice USN-4561-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4561-1
September 30, 2020

ruby-rack vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Rack could be made to expose sensitive information over the network.

Software Description:
- ruby-rack: modular Ruby webserver interface

Details:

It was discovered that Rack incorrectly handled certain paths. An attacker
could possibly use this issue to obtain sensitive information.
(CVE-2020-8161)

It was discovered that Rack incorrectly validated cookies. An attacker
could possibly use this issue to forge a secure cookie. (CVE-2020-8184)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
ruby-rack 1.6.4-4ubuntu0.2

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4561-1
CVE-2020-8161, CVE-2020-8184

Package Information:
https://launchpad.net/ubuntu/+source/ruby-rack/1.6.4-4ubuntu0.2
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