CVE-2020-1601: Junos OS: Upon receipt of certain types of malformed PCEP packets the pccd process may crash.
Certain types of malformed Path Computation Element Protocol (PCEP) packets when received and processed by a Juniper Networks Junos OS device serving as a Path Computation Client (PCC) in a PCEP environment using Juniper's path computational element protocol daemon (pccd) process allows an attacker to cause the pccd process to crash and generate a core file thereby causing a Denial of Service (DoS). Continued receipt of this family of malformed PCEP packets will cause an extended Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1F6-S13, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D180 on SRX Series; 15.1X53 versions prior to 15.1X53-D238, 15.1X53-D496, 15.1X53-D592; 16.1 versions prior to 16.1R7-S4; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R2-S11, 17.1R3; 17.2 versions prior to 17.2R1-S9; 17.2 version 17.2R2 and later prior to 17.2R3-S2; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R2-S2, 17.4R3; 18.1 versions prior to 18.1R3-S2; 18.2 versions prior to 18.2R2-S6, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2. This issue does not affect releases of Junos OS prior to 15.1R1.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1F6-S13 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1R7-S4 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1X49-D180 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1X53-D238 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1X53-D496 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 15.1X53-D592 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 16.1R7-S4 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 16.2R2-S9 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.1R2-S11 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.1R3 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.2R1-S9 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.2R3-S2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.3R3-S3 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.4R2-S2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.4R2-S4 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 17.4R3 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.1R3-S2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.2R2-S6 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.2R3 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.2X75-D40 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.3R2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.4R1-S2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 18.4R2 - Upgrade
Upgrade
Juniper Networks Junos OS (pccd / PCEP Path Computation Client)to a version that resolves this vulnerability.Fixed in 19.1R1
Event History
Frequently Asked Questions
What is the severity of CVE-2020-1601?
CVE-2020-1601 has been classified with a critical severity due to its potential to cause denial of service.
How do I fix CVE-2020-1601?
To mitigate CVE-2020-1601, upgrade your Junos OS to the latest fixed version as recommended in the vendor's advisory.
What types of devices are affected by CVE-2020-1601?
CVE-2020-1601 affects various versions of Juniper Networks Junos OS, particularly those configured as Path Computation Clients (PCC) in PCEP environments.
Are there any workarounds for CVE-2020-1601?
There are no official workarounds for CVE-2020-1601; applying the appropriate software update is the recommended course of action.
What is the impact of exploiting CVE-2020-1601?
Exploiting CVE-2020-1601 can lead to a denial of service condition on affected Juniper Networks devices.