UBUNTU-CVE-2026-100890

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-100890
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-100890
Upstream
  • CVE-2026-100890
Published
2026-09-28T01:16:00Z
Modified
2026-09-30T21:41:53Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_spf_ipv6_explode in the library libopendmarc/opendmarc_spf.c of the component SPF Parser. This manipulation of the argument cp causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References

Affected packages

Ubuntu:18.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.3.2-2
1.3.2-3
1.3.2-3ubuntu0.1
1.3.2-3ubuntu0.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2",
            "binary_version":  "1.3.2-3ubuntu0.2"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.3.2-3ubuntu0.2"
        },
        {
            "binary_name":  "rddmarc",
            "binary_version":  "1.3.2-3ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"
Ubuntu:20.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.3.2-6
1.3.2-7
1.3.2-7ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2",
            "binary_version":  "1.3.2-7ubuntu0.1"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.3.2-7ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"
Ubuntu:22.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.4.0~beta1+dfsg-6
1.4.1.1-1
1.4.1.1-2
1.4.2-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2",
            "binary_version":  "1.4.2-1"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.4.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"
Ubuntu:24.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.4.2-3
1.4.2-4
1.4.2-4.1build1
1.4.2-4.1build2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2t64",
            "binary_version":  "1.4.2-4.1build2"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.4.2-4.1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"
Ubuntu:26.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.4.2-5.1
1.4.2-5.1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2t64",
            "binary_version":  "1.4.2-5.1build1"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.4.2-5.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"
Ubuntu:Pro:16.04:LTS
opendmarc

Package

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

Affected ranges

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

Affected versions

1.*
1.3.1+dfsg-2
1.3.1+dfsg-3
1.3.1+dfsg-3ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libopendmarc2",
            "binary_version":  "1.3.1+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name":  "opendmarc",
            "binary_version":  "1.3.1+dfsg-3ubuntu0.1~esm1"
        },
        {
            "binary_name":  "rddmarc",
            "binary_version":  "1.3.1+dfsg-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100890.json"