ubuntu-cve-2022-28739
Vulnerability from osv_ubuntu
Published
2022-05-09 18:15
Modified
2026-04-22 07:41
Summary
Details
There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libruby2.3",
"binary_version": "2.3.1-2~ubuntu16.04.16+esm3"
},
{
"binary_name": "ruby2.3",
"binary_version": "2.3.1-2~ubuntu16.04.16+esm3"
},
{
"binary_name": "ruby2.3-tcltk",
"binary_version": "2.3.1-2~ubuntu16.04.16+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "ruby2.3",
"purl": "pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.16+esm3?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.1-2~ubuntu16.04.16+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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",
"2.3.1-2~16.04.6",
"2.3.1-2~16.04.7",
"2.3.1-2~16.04.9",
"2.3.1-2~16.04.10",
"2.3.1-2~16.04.11",
"2.3.1-2~16.04.12",
"2.3.1-2~ubuntu16.04.13",
"2.3.1-2~ubuntu16.04.14",
"2.3.1-2~ubuntu16.04.15",
"2.3.1-2~ubuntu16.04.16",
"2.3.1-2~ubuntu16.04.16+esm1",
"2.3.1-2~ubuntu16.04.16+esm2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libruby2.5",
"binary_version": "2.5.1-1ubuntu1.12"
},
{
"binary_name": "ruby2.5",
"binary_version": "2.5.1-1ubuntu1.12"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "ruby2.5",
"purl": "pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.12?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.1-1ubuntu1.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0~preview1-1ubuntu2",
"2.5.0-4ubuntu1",
"2.5.0-4ubuntu4",
"2.5.0-5ubuntu1",
"2.5.0-6ubuntu1",
"2.5.1-1ubuntu1",
"2.5.1-1ubuntu1.1",
"2.5.1-1ubuntu1.2",
"2.5.1-1ubuntu1.4",
"2.5.1-1ubuntu1.5",
"2.5.1-1ubuntu1.6",
"2.5.1-1ubuntu1.7",
"2.5.1-1ubuntu1.8",
"2.5.1-1ubuntu1.9",
"2.5.1-1ubuntu1.10",
"2.5.1-1ubuntu1.11"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libruby2.7",
"binary_version": "2.7.0-5ubuntu1.7"
},
{
"binary_name": "ruby2.7",
"binary_version": "2.7.0-5ubuntu1.7"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ruby2.7",
"purl": "pkg:deb/ubuntu/ruby2.7@2.7.0-5ubuntu1.7?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.0-5ubuntu1.7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libruby3.0",
"binary_version": "3.0.2-7ubuntu2.1"
},
{
"binary_name": "ruby3.0",
"binary_version": "3.0.2-7ubuntu2.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "ruby3.0",
"purl": "pkg:deb/ubuntu/ruby3.0@3.0.2-7ubuntu2.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.2-7ubuntu2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.2-5ubuntu1",
"3.0.2-7",
"3.0.2-7ubuntu2"
]
}
],
"aliases": [],
"details": "There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.",
"id": "UBUNTU-CVE-2022-28739",
"modified": "2026-04-22T07:41:34Z",
"published": "2022-05-09T18:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-28739"
},
{
"type": "REPORT",
"url": "https://github.com/ruby/ruby/commit/69f9992ed41920389d4185141a14f02f89a4d306"
},
{
"type": "REPORT",
"url": "https://github.com/ruby/ruby/commit/c9c2245c0a25176072e02db9254f0e0c84c805cd"
},
{
"type": "REPORT",
"url": "https://github.com/ruby/ruby/commit/3fa771ddedac25560be57f4055f1767e6c810f58"
},
{
"type": "REPORT",
"url": "https://github.com/ruby/ruby/commit/8d142ecff9af7d60728b8cfa9138e8623985c428"
},
{
"type": "REPORT",
"url": "https://www.ruby-lang.org/en/news/2022/04/12/buffer-overrun-in-string-to-float-cve-2022-28739/"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-28739"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5462-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5462-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-28739"
}
],
"related": [
"USN-5462-2",
"USN-5462-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-28739"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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