Out-of-bounds Read Affecting tcpflow package, versions <1.5.2+repack1-1
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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Test your applications- Snyk IDSNYK-ECHOLATEST-TCPFLOW-22113824
- published1 Nov 2026
- disclosed17 Oct 2018
Introduced: 17 Oct 2018
CVE-2018-18409 (opens in a new tab)How to fix?
Upgrade Echo:latest tcpflow to version 1.5.2+repack1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tcpflow package and not the tcpflow package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
A stack-based buffer over-read exists in setbit() at iptree.h of TCPFLOW 1.5.0, due to received incorrect values causing incorrect computation, leading to denial of service during an address_histogram call or a get_histogram call.
References
- https://advisory.echohq.com/cve/CVE-2018-18409
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K6MP4YMCJX4ITOBFX427UMOA6E7ZLJDE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MN5FW6HKPDP7PI2IVNMFSQVIDSCQ5BOR/
- https://github.com/simsong/tcpflow/issues/195
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6MP4YMCJX4ITOBFX427UMOA6E7ZLJDE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MN5FW6HKPDP7PI2IVNMFSQVIDSCQ5BOR/
- https://usn.ubuntu.com/3955-1/