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CVE-2021-31367

Junos OS: PTX Series: An FPC heap memory leak will be triggered by certain Flowspec route operations which can lead to an FPC crash PUBLISHED

Description (CNA)

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 flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos Evolved is not affected.

Affected (CNA)

Vendor / productVersions
Juniper Networks / Junos OSaffected unspecified before 18.4R3-S9; affected 19.1 before 19.1R3-S7; affected 19.2 before 19.2R1-S7, 19.2R3-S3; affected 19.3 before 19.3R2-S6, 19.3R3-S3; affected 19.4 before 19.4R1-S4, 19.4R3-S6; affected 20.1 before 20.1R2-S2, 20.1R3; affected 20.2 before 20.2R3-S1; affected 20.3 before 20.3R3; affected 20.4 before 20.4R3; affected 21.1 before 21.1R2

CWE

CWE-401

References

ADP enrichment

CVE

No English description supplied.