USN-4986-4

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Source
https://ubuntu.com/security/notices/USN-4986-4
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4986-4.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4986-4
Published
2021-06-10T20:52:29Z
Modified
2026-05-20T16:03:07.851989190Z
Summary
rpcbind regression
Details

USN-4986-1 fixed a vulnerability in rpcbind. The update caused a regression resulting in rpcbind crashing in certain environments. This update fixes the problem for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that rpcbind incorrectly handled certain large data sizes. A remote attacker could use this issue to cause rpcbind to consume resources, leading to a denial of service.

References

Affected packages

Ubuntu:Pro:14.04:LTS / rpcbind

Package

Name
rpcbind
Purl
pkg:deb/ubuntu/rpcbind?arch=source&distro=trusty%2Fesm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.2.1-2ubuntu2.2+esm2

Affected versions

0.*
0.2.0-8.2ubuntu2
0.2.1-2ubuntu1
0.2.1-2ubuntu2.1
0.2.1-2ubuntu2.2
0.2.1-2ubuntu2.2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.2.1-2ubuntu2.2+esm2",
            "binary_name": "rpcbind"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": []
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4986-4.json"

Ubuntu:Pro:16.04:LTS / rpcbind

Package

Name
rpcbind
Purl
pkg:deb/ubuntu/rpcbind?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.2.3-0.2ubuntu0.16.04.1+esm2

Affected versions

0.*
0.2.1-6ubuntu4
0.2.3-0.2
0.2.3-0.2ubuntu0.1
0.2.3-0.2ubuntu0.16.04.1
0.2.3-0.2ubuntu0.16.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.2.3-0.2ubuntu0.16.04.1+esm2",
            "binary_name": "rpcbind"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": []
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4986-4.json"