CVE-2012-5642
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
7.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0.8.6-3wheezy1 |
| sid | Fixed | 0.8.6-3wheezy1 |
| forky | Fixed | 0.8.6-3wheezy1 |
| bullseye | Fixed | 0.8.6-3wheezy1 |
| bookworm | Fixed | 0.8.6-3wheezy1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| fail2ban | fail2ban | {"endIncluding":"0.8.7.1"} | |
| fail2ban | fail2ban | 0.1.0 | |
| fail2ban | fail2ban | 0.1.1 | |
| fail2ban | fail2ban | 0.1.2 | |
| fail2ban | fail2ban | 0.3.0 | |
| fail2ban | fail2ban | 0.3.1 | |
| fail2ban | fail2ban | 0.4.0 | |
| fail2ban | fail2ban | 0.4.1 | |
| fail2ban | fail2ban | 0.5.0 | |
| fail2ban | fail2ban | 0.5.1 | |
| fail2ban | fail2ban | 0.5.2 | |
| fail2ban | fail2ban | 0.5.3 | |
| fail2ban | fail2ban | 0.5.4 | |
| fail2ban | fail2ban | 0.5.5 | |
| fail2ban | fail2ban | 0.6.0 | |
| fail2ban | fail2ban | 0.6.1 | |
| fail2ban | fail2ban | 0.7.0 | |
| fail2ban | fail2ban | 0.7.1 | |
| fail2ban | fail2ban | 0.7.2 | |
| fail2ban | fail2ban | 0.7.3 | |
| fail2ban | fail2ban | 0.7.4 | |
| fail2ban | fail2ban | 0.7.5 | |
| fail2ban | fail2ban | 0.7.6 | |
| fail2ban | fail2ban | 0.7.7 | |
| fail2ban | fail2ban | 0.7.8 | |
| fail2ban | fail2ban | 0.7.9 | |
| fail2ban | fail2ban | 0.8.0 | |
| fail2ban | fail2ban | 0.8.1 | |
| fail2ban | fail2ban | 0.8.2 | |
| fail2ban | fail2ban | 0.8.3 | |
| fail2ban | fail2ban | 0.8.4 | |
| fail2ban | fail2ban | 0.8.5 | |
| fail2ban | fail2ban | 0.8.6 | |
| fail2ban | fail2ban | 0.8.7 | |
References
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00001.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00002.html
- http://sourceforge.net/mailarchive/message.php?msg_id=30193056
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:078
- http://www.openwall.com/lists/oss-security/2012/12/17/2
- https://bugs.gentoo.org/show_bug.cgi?id=447572
- https://bugzilla.redhat.com/show_bug.cgi?id=887914
- https://github.com/fail2ban/fail2ban/commit/83109bc
- https://raw.github.com/fail2ban/fail2ban/master/ChangeLog
- https://security-tracker.debian.org/tracker/CVE-2012-5642
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.