CVE-2018-0054 QFX5000/EX4600 Series: Routing protocol flap upon receipt of high rate of Ethernet frames

Medium 6.5 Published Updated

Attackers can cause routing protocol flaps and service disruption on Juniper switches by sending high-rate Ethernet pause frames or ARP storms.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-0054?

CVE-2018-0054 is a medium-severity denial of service vulnerability in Juniper Junos, published on 10 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

On QFX5000 Series and EX4600 switches, a high rate of Ethernet pause frames or an ARP packet storm received on the management interface (fxp0) can cause egress interface congestion, resulting in routing protocol packet drops, such as BGP, leading to peering flaps. The following log message may also be displayed: fpc0 dcbcm_check_stuck_buffers: Buffers are stuck on queue 7 of port 45 This issue only affects the QFX5000 Series products (QFX5100, QFX5110, QFX5200, QFX5210) and the EX4600 switch. No other platforms are affected by this issue. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D47 on QFX5000 Series and EX4600; 15.1 versions prior to 15.1R7, 15.1R8 on QFX5000 Series and EX4600; 15.1X53 versions prior to 15.1X53-D233 on QFX5000 Series and EX4600; 16.1 versions prior to 16.1R7 on QFX5000 Series and EX4600; 16.2 versions prior to 16.2R3 on QFX5000 Series and EX4600; 17.1 versions prior to 17.1R2-S9, 17.1R3 on QFX5000 Series and EX4600; 17.2 versions prior to 17.2R2-S6, 17.2R3 on QFX5000 Series and EX4600; 17.2X75 versions prior to 17.2X75-D42 on QFX5000 Series and EX4600; 17.3 versions prior to 17.3R3 on QFX5000 Series and EX4600; 17.4 versions prior to 17.4R2 on QFX5000 Series and EX4600; 18.1 versions prior to 18.1R2 on QFX5000 Series and EX4600.

Weakness: CWE-400

Which versions are affected by CVE-2018-0054?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2018-0054?

No fix has been published for CVE-2018-0054 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-2018-0054 being exploited?

There is no known exploitation of CVE-2018-0054 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-vh77-2vv6-g7qh.

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