UBUNTU-CVE-2026-61801

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Source
https://ubuntu.com/security/CVE-2026-61801
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61801.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-61801
Upstream
Published
2026-10-13T00:00:00Z
Modified
2026-10-14T03:23:11Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The github.com/moby/sys/user package provides Go utilities for parsing and looking up entries in Unix-style user and group database files. Versions before 0.4.1 do not sufficiently limit entries when parsing /etc/passwd- or /etc/group-style files, allowing an attacker who can supply a specially crafted file to cause excessive memory consumption and potentially terminate the affected process due to an out-of-memory condition. This issue is patched in version 0.4.1. As a workaround, avoid parsing attacker-controlled user or group database files, or validate and limit untrusted input before parsing it.

References

Affected packages

Ubuntu:22.04:LTS / golang-github-moby-sys

Package

Name
golang-github-moby-sys
Purl
pkg:deb/ubuntu/golang-github-moby-sys?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.0~git20201113.5a29239-1
0.0~git20220215.b8d8fab-1
0.0~git20220215.b8d8fab-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-moby-sys-dev",
            "binary_version":  "0.0~git20220215.b8d8fab-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61801.json"

Ubuntu:24.04:LTS / golang-github-moby-sys

Package

Name
golang-github-moby-sys
Purl
pkg:deb/ubuntu/golang-github-moby-sys?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.0~git20220606.416188a-1
0.0~git20231105.a4e0878-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-moby-sys-dev",
            "binary_version":  "0.0~git20231105.a4e0878-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61801.json"

Ubuntu:26.04:LTS / golang-github-moby-sys

Package

Name
golang-github-moby-sys
Purl
pkg:deb/ubuntu/golang-github-moby-sys?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.0~git20241107.638aa7c-2
0.0~git20250819.9dc3a90-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-moby-sys-dev",
            "binary_version":  "0.0~git20250819.9dc3a90-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-61801.json"