CVE-2013-7176
config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2013-7176- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2013-7176- Updated
- 2026-11-02
EUVDEUVD-2013-6959No score
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.
- Record
EUVD-2013-6959- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c3p6-cwjh-4h46No score
config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote...
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.
- Record
GHSA-c3p6-cwjh-4h46- Weakness
- CWE-20
- Updated
- 2026-11-02
OSVNo score
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.
- Record
CVE-2013-7176- Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-7176No score
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.
- Record
DEBIAN-CVE-2013-7176- Updated
- 2026-11-02
OSVMGASA-2014-0176No score
Updated fail2ban packages fix security issues
An update to fail2ban 0.8.13 has been released to fix security issues, amongst other bugfixes.
fail2ban versions prior to 0.8.11 would allow a remote unauthenticated attacker to cause arbitrary IP addresses to be blocked by Fail2ban causing legitimate users to be blocked from accessing services protected by Fail2ban. These services are cyrus-imap (CVE-2013-7177) and postfix (CVE-2013-7176).
- Record
MGASA-2014-0176- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10347-1No score
SuSEfirewall2-fail2ban-0.9.5-1.1 on GA media
These are all security issues fixed in the SuSEfirewall2-fail2ban-0.9.5-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10347-1- Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-7176No score
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.
- Record
UBUNTU-CVE-2013-7176- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fail2banDebian:12 | before 0.8.11-1 | 0.8.11-1 |
fail2banDebian:13 | before 0.8.11-1 | 0.8.11-1 |
fail2banDebian:14 | before 0.8.11-1 | 0.8.11-1 |
fail2banDebian:6.0 From an advisory covering 2 CVEs | before 0.8.4-3+squeeze3, plus listed versions 0.8.4-30.8.4-3+squeeze10.8.4-3+squeeze2 | 0.8.4-3+squeeze3 |
fail2banDebian:7 From an advisory covering 2 CVEs | before 0.8.6-3wheezy3, plus listed versions 0.8.6-3wheezy10.8.6-3wheezy2 | 0.8.6-3wheezy3 |
fail2banMageia:3 From an advisory covering 2 CVEs | before 0.8.13-2.mga3 | 0.8.13-2.mga3 |
fail2banMageia:4 From an advisory covering 2 CVEs | before 0.8.13-2.mga4 | 0.8.13-2.mga4 |
fail2banopenSUSE:Tumbleweed From an advisory covering 4 CVEs | before 0.9.5-1.1 | 0.9.5-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-7176 is a medium vulnerability (CVSS 5.0) in Fail2ban, published February 1, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.23%, the 88th percentile. Fixed in fail2ban 0.8.11-1.
References
kb.cert.org/vuls/id/686662
lists.opensuse.org/opensuse-updates/2014-03/msg00021.html
debian.org/security/2014/dsa-2979
github.com/fail2ban/fail2ban/commit/eb2f0c927257120dfc32d2450fd63f1962f38821
nvd.nist.gov/vuln/detail/CVE-2013-7176
Show 10 moreShow less
security-tracker.debian.org/tracker/CVE-2013-7176
advisories.mageia.org/MGASA-2014-0176.html
bugs.mageia.org/show_bug.cgi?id=11569
ubuntu.com/security/CVE-2013-7176
cve.org/CVERecord?id=CVE-2013-7176
suse.com/security/cve/CVE-2009-5023