CVE-2013-7176: n/a vulnerability

CVE-2013-7176: config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote attackers to tri...

config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an improperly designed regular expression.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:01 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw lets a remote sender manipulate Fail2ban's Postfix log filter so Fail2ban may block an arbitrary IP address. The main business risk is denial of service against users, partners, monitoring systems, or infrastructure that gets wrongly banned. Systems are most likely exposed when they run Fail2ban before 0.8.11 with the Postfix filter enabled, especially on mail servers processing untrusted inbound email. Vendor package backports may change version appearance, so verify advisory status, not only upstream version. Treat as a targeted availability risk for mail and operations infrastructure. Prioritize exposed mail servers using older Fail2ban packages, but this is not supported by the provided evidence as active exploitation, code execution, or data compromise. Mitigation focus: Upgrade Fail2ban to 0.8.11 or a vendor package containing the Postfix filter fix.; Apply relevant Debian or openSUSE security updates where those distributions are used.; Review local Fail2ban filter overrides that may retain the vulnerable Postfix regex..

Prepared: Jun 14, 2026, 14:50 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 1, 2014, 15:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/fail2ban/fail2ban/commit/eb2f0c927257120dfc32d2450fd63f1962f38821CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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