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CVE-2019-1869

HIGHCVSS 8.6/10EPSS 2.64%

Last modified

CVE-2019-1869 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A vulnerability in the internal packet-processing functionality of the Cisco StarOS operating system running on virtual platforms could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. EPSS estimates a 2.64% chance of exploitation in the next 30 days.

Description

A vulnerability in the internal packet-processing functionality of the Cisco StarOS operating system running on virtual platforms could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service interface from receiving any traffic, which would lead to a DoS condition on the affected interface. The device may have to be manually reloaded to recover from exploitation of this vulnerability.

Metrics

CVSS 3.0
8.6/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Probability
2.64%

83.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoStaros>= 21.6, < 21.6.13
CiscoStaros>= 21.6b, < 21.6b.16
CiscoStaros>= 21.7, < 21.7.11
CiscoStaros>= 21.8, < 21.8.10
CiscoStaros>= 21.9, < 21.9.7
CiscoStaros>= 21.10, < 21.10.2
CiscoStaros>= 21.11, < 21.11.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-1869?
A vulnerability in the internal packet-processing functionality of the Cisco StarOS operating system running on virtual platforms could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service interface from receiving any traffic, which would lead to a DoS condition on the affected interface. The device may have to be manually reloaded to recover from exploitation of this vulnerability.
How severe is CVE-2019-1869?
CVE-2019-1869 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 2.64% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1869?
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.

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Source: NVD / NIST