Buffer overflow in Cisco Adaptive Security Appliance Software
CVE-2016-6432
A vulnerability in the Identity Firewall feature of Cisco ASA Software before 9.6(2.1) could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this vulnerability by sending a crafted NetBIOS packet in response to a NetBIOS probe sent by the ASA software. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or cause a reload of the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 traffic.
Vulnerability class: Buffer Overflow
EPSS: 0.067 (93.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Adaptive_security_appliance_software — versions 8.4.0, 8.4.2, 8.4.2.1
- N/a Cisco Asa Software Before 9.6(2.1) — versions Cisco ASA Software before 9.6(2.1)
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- psirt@cisco.com (vdb-entry, x_refsource_SECTRACK)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2016-6432?
- CVE-2016-6432 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2016-10-27.
- How severe is CVE-2016-6432?
- High severity. CVSS v3 base score is 8.1 out of 10.