CVE-2019-1691
mediumPriorität · verfolgen · 24EPSS 0.023 · 83. PerzentilEUUSEPSS · bewertet 2026-10-28
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco Secure Firewall Threat Defense (FTD) Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (3)
Betroffene Produkte und Versionsbereiche.
- cisco secure firewall threat defense< 6.2.3.4nvdUScpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-20190220-fpwr-ssltls-dosCisco Firepower Threat Defense Software SSL or TLS Denial of Service Vulnerability2019-02-20csaf · cisco_csafUS
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. There are no workarounds that address this vulnerability.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (11)
Externe Belege — Patches, Meldungen, Analysen.
- http://www.nsfocus.net/vulndb/42797cnnvd
- http://www.securityfocus.com/bid/107099cnnvd
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvj97647Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-1691cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-fpwr-ssltls-doscnnvd
- https://www.auscert.org.au/bulletins/75870cnnvd
- https://www.securityfocus.com/bid/107099cnnvd
- http://www.securityfocus.com/bid/107099enisa_euvd
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