USN-6055-2

Source
https://ubuntu.com/security/notices/USN-6055-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/USN-6055-2.json
Related
Published
2023-05-05T12:46:21.433408Z
Modified
2023-05-05T12:46:21.433408Z
Summary
ruby2.3, ruby2.5, ruby2.7 regression
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)

References

Affected packages

Ubuntu:20.04:LTS / ruby2.7

Package

Name
ruby2.7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
2.7.0-5ubuntu1.10

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "ruby2.7-doc": "2.7.0-5ubuntu1.10",
            "ruby2.7": "2.7.0-5ubuntu1.10",
            "libruby2.7": "2.7.0-5ubuntu1.10",
            "ruby2.7-dev": "2.7.0-5ubuntu1.10"
        }
    ]
}

Ubuntu:18.04:LTS / ruby2.5

Package

Name
ruby2.5

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
2.5.1-1ubuntu1.15

Ecosystem specific 

{
    "availability": "No subscription needed",
    "binaries": [
        {
            "ruby2.5": "2.5.1-1ubuntu1.15",
            "libruby2.5": "2.5.1-1ubuntu1.15",
            "ruby2.5-dev": "2.5.1-1ubuntu1.15",
            "ruby2.5-doc": "2.5.1-1ubuntu1.15"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / ruby2.3

Package

Name
ruby2.3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0The exact introduced commit is unknown
Fixed
2.3.1-2~ubuntu16.04.16+esm6

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "ruby2.3-doc": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3-dev": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3-tcltk": "2.3.1-2~ubuntu16.04.16+esm6",
            "libruby2.3": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3": "2.3.1-2~ubuntu16.04.16+esm6"
        }
    ]
}