CVEvulnerability

CVE-2019-1687

7.5 HIGH Published 2019-05-03 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2019-05-03
Last modified
2026-08-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0 ([email protected])
6.8 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-20

Description

A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending a crafted TCP packet sequence to the targeted device. A successful exploit could allow the attacker to cause a DoS condition.

Affected configurations

• cisco adaptive security appliance software (< 9.4.4.34) • cisco adaptive security appliance software (>= 9.5 < 9.6.4.25) • cisco adaptive security appliance software (>= 9.7 < 9.8.4) • cisco adaptive security appliance software (>= 9.9 < 9.9.2.50) • cisco adaptive security appliance software (>= 9.10 < 9.10.1.17) • cisco secure firewall threat defense (>= 6.0.0 < 6.2.3.12) • cisco secure firewall threat defense (>= 6.3.0 < 6.3.0.3)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References