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CVE-2012-5642

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag...

7.5 HighFix available

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Exploit likelihood

3.12%Up 1.1 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
CVE-2012-5642
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE List No score

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
CVE-2012-5642
Updated
2026-11-02
EUVDEUVD-2012-5526 No score

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
EUVD-2012-5526
Updated
2026-11-03
GitHub AdvisoriesGHSA-mxxq-p5rj-2jcc No score

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag...

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
GHSA-mxxq-p5rj-2jcc
Updated
2026-11-02
OSV No score

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
CVE-2012-5642
Updated
2026-11-02
OSVDEBIAN-CVE-2012-5642 No score

server/action.py in Fail2ban before 0.8.8 does not properly handle the content of the matches tag, which might allow remote attackers to trigger unsafe behavior in a custom action file via unspecified symbols in this content.

Record
DEBIAN-CVE-2012-5642
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
fail2ban
Debian:12
before 0.8.6-3wheezy1
0.8.6-3wheezy1
fail2ban
Debian:13
before 0.8.6-3wheezy1
0.8.6-3wheezy1
fail2ban
Debian:14
before 0.8.6-3wheezy1
0.8.6-3wheezy1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-5642 is a high vulnerability (CVSS 7.5) in Fail2ban, published December 31, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.12%, the 87th percentile. Fixed in fail2ban 0.8.6-3wheezy1.

References

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