CVE-2019-12678 Integer overflow in Cisco Adaptive Security Appliance (ASA) Software

High 8.6 Published 2 Oct 2019 Updated 19 Nov 2024

Remote unauthenticated attackers can cause a denial of service on Cisco ASA and FTD devices by sending malicious SIP packets that trigger an integer underflow and crash.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-12678?

CVE-2019-12678 is a high-severity vulnerability in Cisco Adaptive Security Appliance, published on 2 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Session Initiation Protocol (SIP) inspection module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper parsing of SIP messages. An attacker could exploit this vulnerability by sending a malicious SIP packet through an affected device. A successful exploit could allow the attacker to trigger an integer underflow, causing the software to try to read unmapped memory and resulting in a crash.

Weakness: CWE-191

Which versions are affected by CVE-2019-12678?

It affects 3 products.

Products include Cisco Adaptive Security Appliance, Cisco Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense.

How do I fix CVE-2019-12678?

No fix has been published for CVE-2019-12678 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-12678 being exploited?

There is no known exploitation of CVE-2019-12678 in the wild and no public exploit code.

All Cisco Adaptive Security Appliance vulnerabilities

Sources

Also known as GHSA-8rj6-gvcm-h3h5.