What is CVE-2021-31367?

CVE-2021-31367 is a medium-severity vulnerability in Juniper Junos, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2021-10-19.

How severe is CVE-2021-31367?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos

CVE-2021-31367

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flows…

EPSS: 0.004 (30.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 18.4, 19.1, 19.2
Juniper Ptx1000
Juniper Ptx10001-36mr
Juniper Ptx10002
Juniper Ptx10003
Juniper Ptx10004
Juniper Ptx10008
Juniper Ptx10016
Juniper Ptx3000
Juniper Ptx5000

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

sirt@juniper.net (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-31367?: CVE-2021-31367 is a medium-severity vulnerability in Juniper Junos, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2021-10-19.
How severe is CVE-2021-31367?: Medium severity. CVSS v3 base score is 6.5 out of 10.