UBUNTU-CVE-2026-61548

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Source
https://ubuntu.com/security/CVE-2026-61548
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-61548
Upstream
  • CVE-2026-61548
Published
2026-07-20T00:00:00Z
Modified
2026-07-21T13:10:20.270787530Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

References

Affected packages

Ubuntu:14.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=trusty

Affected ranges

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

Affected versions

5.*
5.8.11-2ubuntu4
7.*
7.4.4-1ubuntu1
7.4.4-1ubuntu2
7.4.4-1ubuntu2.1
7.4.4-1ubuntu2.3
7.4.4-1ubuntu2.5
7.4.4-1ubuntu2.6
7.4.4-1ubuntu2.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "7.4.4-1ubuntu2.7",
            "binary_name": "rsyslog-relp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:18.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=bionic

Affected ranges

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

Affected versions

8.*
8.16.0-1ubuntu9
8.16.0-1ubuntu10
8.32.0-1ubuntu3
8.32.0-1ubuntu4
8.32.0-1ubuntu4.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-czmq"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-hiredis"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-kafka"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-mongodb"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.32.0-1ubuntu4.2",
            "binary_name": "rsyslog-relp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:20.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=focal

Affected ranges

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

Affected versions

8.*
8.1901.0-1ubuntu4
8.2001.0-1ubuntu1
8.2001.0-1ubuntu1.1
8.2001.0-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-czmq"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-hiredis"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-kafka"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-mongodb"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-openssl"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.2001.0-1ubuntu1.3",
            "binary_name": "rsyslog-relp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:22.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=jammy

Affected ranges

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

Affected versions

8.*
8.2102.0-2ubuntu2
8.2110.0-3ubuntu1
8.2110.0-3ubuntu2
8.2110.0-4ubuntu1
8.2112.0-2ubuntu2
8.2112.0-2ubuntu2.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-czmq"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-hiredis"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-kafka"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-kubernetes"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-mongodb"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-openssl"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-relp"
        },
        {
            "binary_version": "8.2112.0-2ubuntu2.2",
            "binary_name": "rsyslog-snmp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:24.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=noble

Affected ranges

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

Affected versions

8.*
8.2306.0-2ubuntu2
8.2312.0-3ubuntu1
8.2312.0-3ubuntu2
8.2312.0-3ubuntu3
8.2312.0-3ubuntu7
8.2312.0-3ubuntu8
8.2312.0-3ubuntu9
8.2312.0-3ubuntu9.1
8.2312.0-3ubuntu9.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-czmq"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-hiredis"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-kafka"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-kubernetes"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-mongodb"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-openssl"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-relp"
        },
        {
            "binary_version": "8.2312.0-3ubuntu9.2",
            "binary_name": "rsyslog-snmp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:26.04:LTS
rsyslog

Package

Name
rsyslog
Purl
pkg:deb/ubuntu/rsyslog?arch=source&distro=resolute

Affected ranges

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

Affected versions

8.*
8.2504.0-1ubuntu2
8.2512.0-1ubuntu2
8.2512.0-1ubuntu3
8.2512.0-1ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-clickhouse"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-czmq"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-docker"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-hiredis"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-kafka"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-kubernetes"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-mongodb"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-openssl"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-relp"
        },
        {
            "binary_version": "8.2512.0-1ubuntu4",
            "binary_name": "rsyslog-snmp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"
Ubuntu:Pro:16.04:LTS
rsyslog

Package

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

Affected ranges

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

Affected versions

8.*
8.12.0-1ubuntu2
8.12.0-1ubuntu3
8.14.0-2ubuntu1
8.14.0-2ubuntu2
8.16.0-1ubuntu1
8.16.0-1ubuntu2
8.16.0-1ubuntu3
8.16.0-1ubuntu3.1
8.16.0-1ubuntu3.1+esm1
8.16.0-1ubuntu3.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-elasticsearch"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-gnutls"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-gssapi"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-mysql"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-pgsql"
        },
        {
            "binary_version": "8.16.0-1ubuntu3.1+esm2",
            "binary_name": "rsyslog-relp"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61548.json"