CVE-2018-0054

QFX5000/EX4600 Series: Routing protocol flap upon receipt of high rate of Ethernet frames

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.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 14.1X53-D47, 15.1R7, 15.1R8, 15.1X53-D233, 16.1R7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R2-S6, 17.2R3, 17.2X75-D42, 17.3R3, 17.4R2, 18.1R2, 18.2R1, 18.2X75-D5, and all subsequent releases.

Workaround:

  • For BGP, configure 'ether-options no-flow-control' on the BGP interface.
  • Configure the lossless percentage of ingress shared buffer pool to be greater than the egress shared buffer pool. For example: [edit class-of-service shared-buffer] user@switch# set ingress buffer-partition lossless percent user@switch# set egress buffer-partition lossless percent

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.19%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10888 vendor advisory
http://www.securitytracker.com/id/1041855 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-0054?
CVE-2018-0054 has been scored as a medium severity vulnerability.
How to fix CVE-2018-0054?
To fix CVE-2018-0054: The following software releases have been updated to resolve this specific issue: 14.1X53-D47, 15.1R7, 15.1R8, 15.1X53-D233, 16.1R7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R2-S6, 17.2R3, 17.2X75-D42, 17.3R3, 17.4R2, 18.1R2, 18.2R1, 18.2X75-D5, and all subsequent releases.
Is CVE-2018-0054 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-0054 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0054?
CVE-2018-0054 affects Juniper Networks Junos OS.
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