USN-3553-1

It was discovered that Ruby failed to validate specification names. An attacker could possibly use a maliciously crafted gem to potentially overwrite any file on the filesystem. (CVE-2017-0901)

It was discovered that Ruby was vulnerable to a DNS hijacking vulnerability. An attacker could use this to possibly force the RubyGems client to download and install gems from a server that the attacker controls. (CVE-2017-0902)

It was discovered that Ruby incorrectly handled certain YAML files. An attacker could use this to possibly execute arbitrary code. (CVE-2017-0903)

References

Affected packages

Ubuntu:16.04:LTS / ruby2.3

Package

Name: ruby2.3
Purl: pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.6?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.3.1-2~16.04.6

Affected versions

2.*

2.3.0-1

2.3.0-2

2.3.0-4ubuntu2

2.3.0-4ubuntu3

2.3.0-5ubuntu1

2.3.1-2~16.04

2.3.1-2~16.04.2

2.3.1-2~16.04.4

2.3.1-2~16.04.5

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libruby2.3",
            "binary_version":  "2.3.1-2~16.04.6"
        },
        {
            "binary_name":  "ruby2.3",
            "binary_version":  "2.3.1-2~16.04.6"
        },
        {
            "binary_name":  "ruby2.3-tcltk",
            "binary_version":  "2.3.1-2~16.04.6"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [
        {
            "id":  "CVE-2017-0901",
            "severity":  [
                {
                    "score":  "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2017-0902",
            "severity":  [
                {
                    "score":  "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2017-0903",
            "severity":  [
                {
                    "score":  "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:16.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3553-1.json"