USN-6055-2: Ruby regression
5 May 2023
USN-6055-1 introduced a regression.
Releases
Packages
- ruby2.3 - Object-oriented scripting language
- ruby2.5 - Object-oriented scripting language
- ruby2.7 - Object-oriented scripting language
Details
USN-6055-1 fixed a vulnerability in Ruby. Unfortunately it introduced a regression.
This update reverts the patches applied to CVE-2023-28755 in order to fix the regression
pending further investigation.
We apologize for the inconvenience.
Original advisory details:
It was discovered that Ruby incorrectly handled certain regular expressions.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2023-28755)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
-
libruby2.3
-
2.3.1-2~ubuntu16.04.16+esm6
Available with Ubuntu Pro
-
ruby2.3
-
2.3.1-2~ubuntu16.04.16+esm6
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.