CVE-2023-20070
published 2023-11-01CVE-2023-20070: A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the…
PriorityP419medium4CVSS 3.1
AVNACHPRNUINSCCNINAL
EPSS
0.54%
41.7th percentile
A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart automatically. No manual intervention is required.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | firepower_threat_defense | — | — |
| cisco | firepower_threat_defense | — | — |
| cisco | firepower_threat_defense | — | — |
CVSS provenance
nvdv3.14.0MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
vendor_cisco4.0MEDIUM
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Cisco
Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
vendor_cisco·2023-11-01·CVSS 4.0
CVE-2023-20070 [MEDIUM] CWE-244 Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart.
This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device t
Cisco
Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2023-20070 Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
CVE-2023-20070: Cisco Firepower Threat Defense Software Snort 3 Detection Engine Denial of Service Vulnerability
A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through th
GHSA
GHSA-9929-5h8g-7gv5: A vulnerability in the TLS 1
ghsa_unreviewed·2023-11-01
CVE-2023-20070 [MEDIUM] CWE-244 GHSA-9929-5h8g-7gv5: A vulnerability in the TLS 1
A vulnerability in the TLS 1.3 implementation of the Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to unexpectedly restart. This vulnerability is due to a logic error in how memory allocations are handled during a TLS 1.3 session. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a crafted TLS 1.3 message sequence through an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in a denial of service (DoS) condition. While the Snort detection engine reloads, packets going through the FTD device that are sent to the Snort detection engine will be dropped. The Snort detection engine will restart
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-11-01
Published