Use of Externally-Controlled Format String Affecting rsyslog package, versions <8.28.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published21 Jul 2026
- disclosed6 Aug 2017
Introduced: 6 Aug 2017
CVE-2017-12588 (opens in a new tab)How to fix?
Upgrade Echo:latest rsyslog to version 8.28.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rsyslog package and not the rsyslog package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
The zmq3 input and output modules in rsyslog before 8.28.0 interpreted description fields as format strings, possibly allowing a format string attack with unspecified impact.
References
- https://advisory.echohq.com/cve/CVE-2017-12588
- https://www.cve.org/CVERecord?id=CVE-2017-12588
- https://security.netapp.com/advisory/ntap-20241227-0009/
- https://github.com/rsyslog/rsyslog/blob/master/ChangeLog
- https://github.com/rsyslog/rsyslog/commit/062d0c671a29f7c6f7dff4a2f1f35df375bbb30b
- https://github.com/rsyslog/rsyslog/pull/1565