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CVE-2019-12678

HIGHCVSS 7.5/10EPSS 1.82%

Last modified

CVE-2019-12678 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.82% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.82%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAdaptive Security Appliance< 9.4.4.37
CiscoAdaptive Security Appliance Software>= 9.5, < 9.6.4.34
CiscoAdaptive Security Appliance Software>= 9.7, < 9.8.4.7
CiscoAdaptive Security Appliance Software>= 9.9, < 9.9.2.56
CiscoAdaptive Security Appliance Software>= 9.10, < 9.10.1.27
CiscoAdaptive Security Appliance Software>= 9.12, < 9.12.2.1
CiscoFirepower Threat Defense< 6.2.3.15
CiscoFirepower Threat Defense>= 6.3.0, < 6.3.0.4
CiscoFirepower Threat Defense>= 6.4.0, < 6.4.0.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-12678?
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.
How severe is CVE-2019-12678?
CVE-2019-12678 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.
How do I fix CVE-2019-12678?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12678?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST