USN-5235-1
- Source
- https://ubuntu.com/security/notices/USN-5235-1
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5235-1.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-5235-1
- Upstream
- Related
- Published
- 2022-01-18T17:13:18.983144Z
- Modified
- 2025-10-13T04:35:43Z
- Summary
- ruby2.3, ruby2.5, ruby2.7 vulnerabilities
- Details
-
It was discovered that Ruby incorrectly handled certain HTML files. An attacker could possibly use this issue to cause a crash. This issue only affected Ubuntu 20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10. (CVE-2021-41816)
It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a regular expression denial of service. (CVE-2021-41817)
It was discovered that Ruby incorrectly handled certain cookie names. An attacker could possibly use this issue to access or expose sensitive information. (CVE-2021-41819)
- References
Affected packages
Ubuntu:Pro:16.04:LTS / ruby2.3
Package
- Name
- ruby2.3
- Purl
- pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.16+esm2?arch=source&distro=esm-infra/xenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.3.1-2~ubuntu16.04.16+esm2
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
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
Ecosystem specific
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "2.3.1-2~ubuntu16.04.16+esm2",
"binary_name": "libruby2.3"
},
{
"binary_version": "2.3.1-2~ubuntu16.04.16+esm2",
"binary_name": "ruby2.3"
},
{
"binary_version": "2.3.1-2~ubuntu16.04.16+esm2",
"binary_name": "ruby2.3-dev"
},
{
"binary_version": "2.3.1-2~ubuntu16.04.16+esm2",
"binary_name": "ruby2.3-tcltk"
}
]
}
Database specific
{
"cves_map": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"id": "CVE-2021-41817",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41819",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
Ubuntu:18.04:LTS / ruby2.5
Package
- Name
- ruby2.5
- Purl
- pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.11?arch=source&distro=bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.5.1-1ubuntu1.11
Affected versions
2.*
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
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "2.5.1-1ubuntu1.11",
"binary_name": "libruby2.5"
},
{
"binary_version": "2.5.1-1ubuntu1.11",
"binary_name": "ruby2.5"
},
{
"binary_version": "2.5.1-1ubuntu1.11",
"binary_name": "ruby2.5-dev"
}
]
}
Database specific
{
"cves_map": {
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-41817",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41819",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}
Ubuntu:20.04:LTS / ruby2.7
Package
- Name
- ruby2.7
- Purl
- pkg:deb/ubuntu/ruby2.7@2.7.0-5ubuntu1.6?arch=source&distro=focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.7.0-5ubuntu1.6
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
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "2.7.0-5ubuntu1.6",
"binary_name": "libruby2.7"
},
{
"binary_version": "2.7.0-5ubuntu1.6",
"binary_name": "ruby2.7"
},
{
"binary_version": "2.7.0-5ubuntu1.6",
"binary_name": "ruby2.7-dev"
}
]
}
Database specific
{
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"id": "CVE-2021-41816",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41817",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-41819",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
}