What’s Vulnerable › Vulnerabilities

CVE-2018-18409

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-10-17 · updated 2026-06-17
• Weakness: CWE-125

Description

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.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 18.10
• Digitalcorpora Tcpflow: 1.5.0
• Fedoraproject Fedora: 28, 29

References

• 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/
• 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/

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