USN-8997-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-8997-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8997-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8997-1
Upstream
Related
Published
2026-11-04T15:25:21Z
Modified
2026-11-05T11:58:20Z
Summary
net-snmp vulnerability
Details

It was discovered that Net-SNMP incorrectly handled newly accepted connections in the SMUX module. An unauthenticated remote attacker could possibly use this issue to cause Net-SNMP to block indefinitely, resulting in a denial of service.

References

Affected packages

Ubuntu:22.04:LTS / net-snmp

Package

Name
net-snmp
Purl
pkg:deb/ubuntu/net-snmp?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.1+dfsg-1ubuntu2.10

Affected versions

5.*
5.9+dfsg-3ubuntu2
5.9+dfsg-3ubuntu3
5.9+dfsg-3ubuntu4
5.9.1+dfsg-1ubuntu1
5.9.1+dfsg-1ubuntu2
5.9.1+dfsg-1ubuntu2.1
5.9.1+dfsg-1ubuntu2.2
5.9.1+dfsg-1ubuntu2.4
5.9.1+dfsg-1ubuntu2.5
5.9.1+dfsg-1ubuntu2.6
5.9.1+dfsg-1ubuntu2.7
5.9.1+dfsg-1ubuntu2.8
5.9.1+dfsg-1ubuntu2.9

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnetsnmptrapd40",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "libsnmp-base",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "libsnmp-perl",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "libsnmp40",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "snmp",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "snmpd",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "snmptrapd",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        },
        {
            "binary_name": "tkmib",
            "binary_version": "5.9.1+dfsg-1ubuntu2.10"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-89147",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8997-1.json"

Ubuntu:24.04:LTS / net-snmp

Package

Name
net-snmp
Purl
pkg:deb/ubuntu/net-snmp?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.4+dfsg-1.1ubuntu3.3

Affected versions

5.*
5.9.3+dfsg-2ubuntu3
5.9.4+dfsg-1ubuntu1
5.9.4+dfsg-1ubuntu2
5.9.4+dfsg-1.1ubuntu2
5.9.4+dfsg-1.1ubuntu3
5.9.4+dfsg-1.1ubuntu3.1
5.9.4+dfsg-1.1ubuntu3.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnetsnmptrapd40t64",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "libsnmp-base",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "libsnmp-perl",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "libsnmp40t64",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "snmp",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "snmpd",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "snmptrapd",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        },
        {
            "binary_name": "tkmib",
            "binary_version": "5.9.4+dfsg-1.1ubuntu3.3"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-89147",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8997-1.json"

Ubuntu:26.04:LTS / net-snmp

Package

Name
net-snmp
Purl
pkg:deb/ubuntu/net-snmp?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.4+dfsg-2ubuntu3.1

Affected versions

5.*
5.9.4+dfsg-2ubuntu2
5.9.4+dfsg-2ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libnetsnmptrapd40t64",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "libsnmp-base",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "libsnmp-perl",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "libsnmp40t64",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "snmp",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "snmpd",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "snmptrapd",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        },
        {
            "binary_name": "tkmib",
            "binary_version": "5.9.4+dfsg-2ubuntu3.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-89147",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8997-1.json"