USN-7256-1

It was discovered that Ruby incorrectly handled parsing of an XML document that has specific XML characters in an attribute value using REXML gem. An attacker could use this issue to cause Ruby to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:20.04:LTS / ruby2.7

Package

Name: ruby2.7
Purl: pkg:deb/ubuntu/ruby2.7@2.7.0-5ubuntu1.16?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.7.0-5ubuntu1.16

Affected versions

2.*

2.7.0-1

2.7.0-2

2.7.0-3

2.7.0-4

2.7.0-4ubuntu1

2.7.0-5ubuntu1

2.7.0-5ubuntu1.1

2.7.0-5ubuntu1.2

2.7.0-5ubuntu1.3

2.7.0-5ubuntu1.4

2.7.0-5ubuntu1.5

2.7.0-5ubuntu1.6

2.7.0-5ubuntu1.7

2.7.0-5ubuntu1.8

2.7.0-5ubuntu1.9

2.7.0-5ubuntu1.10

2.7.0-5ubuntu1.11

2.7.0-5ubuntu1.12

2.7.0-5ubuntu1.13

2.7.0-5ubuntu1.14

2.7.0-5ubuntu1.15

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libruby2.7",
            "binary_version": "2.7.0-5ubuntu1.16"
        },
        {
            "binary_name": "ruby2.7",
            "binary_version": "2.7.0-5ubuntu1.16"
        },
        {
            "binary_name": "ruby2.7-dev",
            "binary_version": "2.7.0-5ubuntu1.16"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-39908"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2024-43398"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7256-1.json"