CVE-2013-7176

Summary

CVE	CVE-2013-7176
State	PUBLISHED
Assigner	certcc
Source Priority	CVE Program / NVD first with legacy fallback
Published	2014-02-01 15:55:04 UTC
Updated	2026-04-29 01:13:23 UTC
Description	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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

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

EPSS: 0.032350000 probability, percentile 0.869030000 (date 2026-07-21)

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector

Network

Access Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

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

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Fail2ban	Fail2ban	0.1.0	All	All	All
Application	Fail2ban	Fail2ban	0.1.1	All	All	All
Application	Fail2ban	Fail2ban	0.1.2	All	All	All
Application	Fail2ban	Fail2ban	0.3.0	All	All	All
Application	Fail2ban	Fail2ban	0.3.1	All	All	All
Application	Fail2ban	Fail2ban	0.4.0	All	All	All
Application	Fail2ban	Fail2ban	0.4.1	All	All	All
Application	Fail2ban	Fail2ban	0.5.0	All	All	All
Application	Fail2ban	Fail2ban	0.5.1	All	All	All
Application	Fail2ban	Fail2ban	0.5.2	All	All	All
Application	Fail2ban	Fail2ban	0.5.3	All	All	All
Application	Fail2ban	Fail2ban	0.5.4	All	All	All
Application	Fail2ban	Fail2ban	0.5.5	All	All	All
Application	Fail2ban	Fail2ban	0.6.0	All	All	All
Application	Fail2ban	Fail2ban	0.6.1	All	All	All
Application	Fail2ban	Fail2ban	0.7.0	All	All	All
Application	Fail2ban	Fail2ban	0.7.1	All	All	All
Application	Fail2ban	Fail2ban	0.7.2	All	All	All
Application	Fail2ban	Fail2ban	0.7.3	All	All	All
Application	Fail2ban	Fail2ban	0.7.4	All	All	All
Application	Fail2ban	Fail2ban	0.7.5	All	All	All
Application	Fail2ban	Fail2ban	0.7.6	All	All	All
Application	Fail2ban	Fail2ban	0.7.7	All	All	All
Application	Fail2ban	Fail2ban	0.7.8	All	All	All
Application	Fail2ban	Fail2ban	0.7.9	All	All	All
Application	Fail2ban	Fail2ban	0.8.0	All	All	All
Application	Fail2ban	Fail2ban	0.8.1	All	All	All
Application	Fail2ban	Fail2ban	0.8.2	All	All	All
Application	Fail2ban	Fail2ban	0.8.3	All	All	All
Application	Fail2ban	Fail2ban	0.8.4	All	All	All
Application	Fail2ban	Fail2ban	0.8.5	All	All	All
Application	Fail2ban	Fail2ban	0.8.6	All	All	All
Application	Fail2ban	Fail2ban	0.8.7	All	All	All
Application	Fail2ban	Fail2ban	0.8.7.1	All	All	All
Application	Fail2ban	Fail2ban	0.8.8	All	All	All
Application	Fail2ban	Fail2ban	0.8.9	All	All	All
Application	Fail2ban	Fail2ban	All	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
ENH: Improve postfix regex and add more samples · fail2ban/fail2ban@eb2f0c9 · GitHub	af854a3a-2127-422b-91ae-364da2661108	github.com	Exploit, Patch
Debian -- Security Information -- DSA-2979-1 fail2ban	af854a3a-2127-422b-91ae-364da2661108	www.debian.org
openSUSE-SU-2014:0348-1: moderate: fail2ban: security and bugfix upgrade	af854a3a-2127-422b-91ae-364da2661108	lists.opensuse.org
Vulnerability Note VU#686662 - Fail2ban postfix and cyrus-imap filters contain denial-of-service vulnerabilities	af854a3a-2127-422b-91ae-364da2661108	www.kb.cert.org	US Government Resource
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.