An issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the function SSHParseBanner is composed only of a \n character, then the program runs into a heap-based buffer over-read. This occurs because the erroneous search for \r results in an integer underflow.
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSuricata Ids Suricata
APPSuricata-Ids4.1.0 – 4.1.4 (excl.)
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
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