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OpensuseOperating system · Suse

CVE-2010-0230

HIGH · 7.5 CVSS v2.0 Published 2010-01-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
SUSE Linux Enterprise 10 SP3 (SLE10-SP3) and openSUSE 11.2 configures postfix to listen on all network interfaces, which might allow remote attackers to bypass intended access restrictions.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

SUSE Linux Enterprise 10 SP3 and openSUSE 11.2 ship with Postfix configured to listen on all network interfaces (0.0.0.0) via the inet_interfaces parameter, instead of restricting to localhost. This exposes the SMTP service to remote network access, potentially allowing remote attackers to bypass intended access restrictions and interact with the mail service.

MitigationConfigure Postfix to listen only on localhost (127.0.0.1) or specific trusted interfaces by setting 'inet_interfaces = localhost' or 'inet_interfaces = <specific IPs>' in /etc/postfix/main.cf, then restart Postfix.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
OpensuseOperating system
Affected:= 11.2
Suse LinuxOperating system
Affected:= 10

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Postfix is installed
    Run 'rpm -q postfix' or check for the existence of /etc/postfix/main.cf
    Affected if Postfix is not installed on the system
  2. Check the inet_interfaces setting
    Read the inet_interfaces parameter from /etc/postfix/main.cf using: grep '^inet_interfaces' /etc/postfix/main.cf
    Affected if The value is 'all', '0.0.0.0', or not explicitly set to 'localhost' or '127.0.0.1'
  3. Confirm Postfix service is running and listening on all interfaces
    Run 'postconf inet_interfaces' to query the active Postfix configuration, and 'netstat -tlnp | grep :25' or 'ss -tlnp | grep :25' to check which addresses the SMTP daemon is bound to
    Affected if Postfix is listening on 0.0.0.0:25 or :::25 instead of only 127.0.0.1:25

The system is affected if Postfix is installed and inet_interfaces is set to 'all' or '0.0.0.0', causing the SMTP service to accept remote connections.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Configure Postfix to listen only on localhost (127.0.0.1) or specific trusted interfaces by setting 'inet_interfaces = localhost' or 'inet_interfaces = <specific IPs>' in /etc/postfix/main.cf, then restart Postfix.

Fix this in Opensuse Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing1.0 h
  • Review / QA0.5 h
3.5 hours of engineering $750
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2010-0230 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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