what you don't know can hurt you

Ubuntu Security Notice USN-4561-2

Ubuntu Security Notice USN-4561-2
Posted Apr 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4561-2 - USN-4561-1 fixed vulnerabilities in Rack. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 20.04 LTS and Ubuntu 20.10. It was discovered that Rack incorrectly handled certain paths. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-8161, CVE-2020-8184
MD5 | 04337f9d1336ac329d86fe6c1373cc09

Ubuntu Security Notice USN-4561-2

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4561-2
April 06, 2021

ruby-rack vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 16.04 LTS

Summary:

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

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

Details:

USN-4561-1 fixed vulnerabilities in Rack. This update provides the
corresponding update for Ubuntu 16.04 LTS, Ubuntu 20.04 LTS and Ubuntu 20.10.

Original advisory details:

It was discovered that Rack incorrectly handled certain paths. An attacker
could possibly use this issue to obtain sensitive information. This issue
only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
(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 20.10:
ruby-rack 2.1.1-5ubuntu0.1

Ubuntu 20.04 LTS:
ruby-rack 2.0.7-2ubuntu0.1

Ubuntu 16.04 LTS:
ruby-rack 1.6.4-3ubuntu0.2

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

References:
https://ubuntu.com/security/notices/USN-4561-2
https://ubuntu.com/security/notices/USN-4561-1
CVE-2020-8161, CVE-2020-8184

Package Information:
https://launchpad.net/ubuntu/+source/ruby-rack/2.1.1-5ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby-rack/2.0.7-2ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby-rack/1.6.4-3ubuntu0.2
Login or Register to add favorites

File Archive:

April 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    17 Files
  • 2
    Apr 2nd
    2 Files
  • 3
    Apr 3rd
    2 Files
  • 4
    Apr 4th
    0 Files
  • 5
    Apr 5th
    15 Files
  • 6
    Apr 6th
    15 Files
  • 7
    Apr 7th
    20 Files
  • 8
    Apr 8th
    16 Files
  • 9
    Apr 9th
    5 Files
  • 10
    Apr 10th
    0 Files
  • 11
    Apr 11th
    0 Files
  • 12
    Apr 12th
    4 Files
  • 13
    Apr 13th
    15 Files
  • 14
    Apr 14th
    27 Files
  • 15
    Apr 15th
    19 Files
  • 16
    Apr 16th
    7 Files
  • 17
    Apr 17th
    0 Files
  • 18
    Apr 18th
    0 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close