CVE-2019-0033: SRX Series: A remote attacker may cause a high CPU Denial of Service to the device when proxy ARP is configured.
A firewall bypass vulnerability in the proxy ARP service of Juniper Networks Junos OS allows an attacker to cause a high CPU condition leading to a Denial of Service (DoS). This issue affects only IPv4. Affected releases are Juniper Networks Junos OS: 12.1X46 versions above and including 12.1X46-D25 prior to 12.1X46-D71, 12.1X46-D73 on SRX Series; 12.3X48 versions prior to 12.3X48-D50 on SRX Series; 15.1X49 versions prior to 15.1X49-D75 on SRX Series.
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Frequently Asked Questions
What is the severity of CVE-2019-0033?
CVE-2019-0033 is classified as a high severity vulnerability that can lead to a Denial of Service (DoS).
How do I fix CVE-2019-0033?
To fix CVE-2019-0033, upgrade to a fixed version of Junos OS as specified in the vendor advisory.
What versions of Junos OS are affected by CVE-2019-0033?
CVE-2019-0033 affects specific versions of Junos OS ranging from 12.1X46 to 15.1X49 inclusive.
Can CVE-2019-0033 affect IPv6 traffic?
No, CVE-2019-0033 specifically affects only IPv4 traffic.
What can an attacker achieve by exploiting CVE-2019-0033?
An attacker can exploit CVE-2019-0033 to cause a high CPU condition on the device, leading to potential downtime.