CVE-2019-1691Medium· 5.8▾ SunlitA vulnerability in the detection engine of Cisco Firepower Threat Defense Software could allow an unauthenticated, remote attacker to cause the unexpected restart of the SNORT detection engine, resulting in a denial of service (DoS) cond…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 31.9 · likelihood 0.5 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
2.3%
A vulnerability in the detection engine of Cisco Firepower Threat Defense Software could allow an unauthenticated, remote attacker to cause the unexpected restart of the SNORT detection engine, resulting in a denial of service (DoS) condition. The vulnerability is due to the incomplete error handling of the SSL or TLS packet header during the connection establishment. An attacker could exploit this vulnerability by sending a crafted SSL or TLS packet during the connection handshake. An exploit could allow the attacker to cause the SNORT detection engine to unexpectedly restart, resulting in a partial DoS condition while the detection engine restarts. Versions prior to 6.2.3.4 are affected.
secure_firewall_threat_defense < 6.2.3.4Upgrade past the affected range:
secure_firewall_threat_defense 6.2.3.4Connected by shared product, vendor, weakness, or advisory.
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