CVE-2020-1684

Junos OS: SRX Series: High CPU load due to processing for HTTP traffic when Application Identification is enabled.

Description

On Juniper Networks SRX Series configured with application identification inspection enabled, receipt of specific HTTP traffic can cause high CPU load utilization, which could lead to traffic interruption. Application identification is enabled by default and is automatically turned on when Intrusion Detection and Prevention (IDP), AppFW, AppQoS, or AppTrack is configured. Thus, this issue might occur when IDP, AppFW, AppQoS, or AppTrack is configured. This issue affects Juniper Networks Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D105; 15.1X49 versions prior to 15.1X49-D221, 15.1X49-D230; 17.4 versions prior to 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R2-S5, 18.4R3-S1; 19.1 versions prior to 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D221, 15.1X49-D230, 17.4R3-S3, 18.1R3-S11, 18.2R3-S3, 18.3R2-S4, 18.3R3-S2, 18.4R2-S5, 18.4R3-S1, 19.1R2-S2, 19.1R3, 19.2R1-S5, 19.2R2, 19.3R3, 19.4R2, 20.1R1,and all subsequent releases.

Workaround:

  • There are no viable workarounds for this issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.39%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA11081 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-1684?
CVE-2020-1684 has been scored as a high severity vulnerability.
How to fix CVE-2020-1684?
To fix CVE-2020-1684: The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D221, 15.1X49-D230, 17.4R3-S3, 18.1R3-S11, 18.2R3-S3, 18.3R2-S4, 18.3R3-S2, 18.4R2-S5, 18.4R3-S1, 19.1R2-S2, 19.1R3, 19.2R1-S5, 19.2R2, 19.3R3, 19.4R2, 20.1R1,and all subsequent releases.
Is CVE-2020-1684 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-1684 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-2020-1684?
CVE-2020-1684 affects Juniper Networks Junos OS.
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