USN-4842-1

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Source
https://ubuntu.com/security/notices/USN-4842-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4842-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4842-1
Upstream
Related
Published
2021-03-15T22:25:46.721241Z
Modified
2025-10-13T04:35:24Z
Summary
ntopng vulnerability
Details

It was discovered that ntopng did not properly seed its random number generator, leading to predictable session tokens. An attacker could use this vulnerability to hijack a user's session.

References

Affected packages

Ubuntu:Pro:16.04:LTS / ntopng

Package

Name
ntopng
Purl
pkg:deb/ubuntu/ntopng@2.2+dfsg1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2+dfsg1-1ubuntu0.1~esm2

Affected versions

1.*

1.2.1+dfsg1-2ubuntu1

2.*

2.0+dfsg1-1
2.2+dfsg1-1
2.2+dfsg1-1build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ntopng",
            "binary_version": "2.2+dfsg1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ntopng-data",
            "binary_version": "2.2+dfsg1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2018-12520",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ]
}

Ubuntu:Pro:18.04:LTS / ntopng

Package

Name
ntopng
Purl
pkg:deb/ubuntu/ntopng@3.2+dfsg1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2+dfsg1-1ubuntu0.1~esm2

Affected versions

2.*

2.4+dfsg1-3
2.4+dfsg1-4

3.*

3.2+dfsg1-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ntopng",
            "binary_version": "3.2+dfsg1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "ntopng-data",
            "binary_version": "3.2+dfsg1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2018-12520",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ]
}