CVE-2017-2300 Denial of service in Junos OS on SRX Series Services Gateways chassis cluster
Attackers can crash the flowd daemon on primary SRX cluster nodes via crafted multicast packets, causing service disruption.
- 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-2017-2300?
CVE-2017-2300 is a high-severity denial of service vulnerability in Juniper Junos, published on 30 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On Juniper Networks SRX Series Services Gateways chassis clusters running Junos OS 12.1X46 prior to 12.1X46-D65, 12.3X48 prior to 12.3X48-D40, 12.3X48 prior to 12.3X48-D60, flowd daemon on the primary node of an SRX Series chassis cluster may crash and restart when attempting to synchronize a multicast session created via crafted multicast packets.
Which versions are affected by CVE-2017-2300?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2017-2300?
No fix has been published for CVE-2017-2300 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-2300 being exploited?
There is no known exploitation of CVE-2017-2300 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-q4mm-jww3-53jr.