UBUNTU-CVE-2021-1224

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2021-1224
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-1224
Upstream
Published
2021-01-13T22:15:00Z
Modified
2025-10-24T04:49:08Z
Severity
  • 5.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

References

Affected packages

Ubuntu:14.04:LTS / snort

Package

Name
snort
Purl
pkg:deb/ubuntu/snort@2.9.6.0-0ubuntu1?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.2.2-3
2.9.5.3-3
2.9.6.0-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "snort",
            "binary_version": "2.9.6.0-0ubuntu1"
        },
        {
            "binary_name": "snort-common",
            "binary_version": "2.9.6.0-0ubuntu1"
        },
        {
            "binary_name": "snort-common-libraries",
            "binary_version": "2.9.6.0-0ubuntu1"
        },
        {
            "binary_name": "snort-rules-default",
            "binary_version": "2.9.6.0-0ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json"

Ubuntu:16.04:LTS / snort

Package

Name
snort
Purl
pkg:deb/ubuntu/snort@2.9.7.0-5?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.7.0-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "snort",
            "binary_version": "2.9.7.0-5"
        },
        {
            "binary_name": "snort-common",
            "binary_version": "2.9.7.0-5"
        },
        {
            "binary_name": "snort-common-libraries",
            "binary_version": "2.9.7.0-5"
        },
        {
            "binary_name": "snort-rules-default",
            "binary_version": "2.9.7.0-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json"

Ubuntu:18.04:LTS / snort

Package

Name
snort
Purl
pkg:deb/ubuntu/snort@2.9.7.0-5build1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.7.0-5
2.9.7.0-5build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "snort",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-common",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-common-libraries",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-rules-default",
            "binary_version": "2.9.7.0-5build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json"

Ubuntu:20.04:LTS / snort

Package

Name
snort
Purl
pkg:deb/ubuntu/snort@2.9.7.0-5build1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.7.0-5build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "snort",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-common",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-common-libraries",
            "binary_version": "2.9.7.0-5build1"
        },
        {
            "binary_name": "snort-rules-default",
            "binary_version": "2.9.7.0-5build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json"

Ubuntu:22.04:LTS / snort

Package

Name
snort
Purl
pkg:deb/ubuntu/snort@2.9.15.1-6build1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.15.1-5
2.9.15.1-6
2.9.15.1-6build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "snort",
            "binary_version": "2.9.15.1-6build1"
        },
        {
            "binary_name": "snort-common",
            "binary_version": "2.9.15.1-6build1"
        },
        {
            "binary_name": "snort-common-libraries",
            "binary_version": "2.9.15.1-6build1"
        },
        {
            "binary_name": "snort-rules-default",
            "binary_version": "2.9.15.1-6build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-1224.json"