Vulnerability in Juniper Junos OS Evolved
CVE-2021-0298
A Race Condition in the 'show chassis pic' command in Juniper Networks Junos OS Evolved may allow an attacker to crash the port interface concentrator daemon (picd) process on the FPC, if the command is executed coincident with other system events outside the attacker's control, leading to a Denial of Service (DoS) condition. Continued execution of the CLI command, under precise conditions, could create a sustained Denial of Service (DoS) condition. This issue affects all Juniper Networks Junos OS Evolved versions prior to 20.1R2-EVO on PTX10003 and PTX10008 platforms. Junos OS is not affected by this vulnerability.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Juniper Junos OS Evolved — versions 18.3, 19.1, 19.2
- Juniper Ptx10003
- Juniper Ptx10008
- Juniper Networks Junos OS Evolved — versions unspecified
Weakness classification (CWE)
References
- kb.juniper.net/JSA11212 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0298?
- CVE-2021-0298 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2021-10-19.
- How severe is CVE-2021-0298?
- Medium severity. CVSS v3 base score is 4.7 out of 10.