CVE Vulnerabilities

CVE-2021-31379

Published: Oct 19, 2021 | Modified: Oct 27, 2021
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

An Incorrect Behavior Order vulnerability in the MAP-E automatic tunneling mechanism of Juniper Networks Junos OS allows an attacker to send certain malformed IPv4 or IPv6 packets to cause a Denial of Service (DoS) to the PFE on the device which is disabled as a result of the processing of these packets. Continued receipt and processing of these malformed IPv4 or IPv6 packets will create a sustained Denial of Service (DoS) condition. This issue only affects MPC 7/8/9/10/11 cards, when MAP-E IP reassembly is enabled on these cards. An indicator of compromise is the output: FPC [FPC ID # e.g. 0] PFE #{PFE ID # e.g. 1] : Fabric Disabled Example: FPC 0 PFE #1 : Fabric Disabled when using the command: show chassis fabric fpcs An example of a healthy result of the command use would be: user@device-re1> show chassis fabric fpcs Fabric management FPC state: FPC 0 PFE #0 Plane 0: Plane enabled Plane 1: Plane enabled Plane 2: Plane enabled Plane 3: Plane enabled Plane 4: Plane enabled Plane 5: Plane enabled Plane 6: Plane enabled Plane 7: Plane enabled This issue affects: Juniper Networks Junos OS on MX Series with MPC 7/8/9/10/11 cards, when MAP-E IP reassembly is enabled on these cards. 17.2 version 17.2R1 and later versions; 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R2-S6, 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R1-S8, 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S5, 19.3R3. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R1.

Affected Software

Name Vendor Start Version End Version
Junos Juniper 17.2-r1 (including) 17.2-r1 (including)
Junos Juniper 17.2-r1-s1 (including) 17.2-r1-s1 (including)
Junos Juniper 17.2-r1-s2 (including) 17.2-r1-s2 (including)
Junos Juniper 17.2-r1-s3 (including) 17.2-r1-s3 (including)
Junos Juniper 17.2-r1-s4 (including) 17.2-r1-s4 (including)
Junos Juniper 17.2-r1-s5 (including) 17.2-r1-s5 (including)
Junos Juniper 17.2-r1-s6 (including) 17.2-r1-s6 (including)
Junos Juniper 17.2-r1-s7 (including) 17.2-r1-s7 (including)
Junos Juniper 17.2-r1-s8 (including) 17.2-r1-s8 (including)
Junos Juniper 17.2-r2 (including) 17.2-r2 (including)
Junos Juniper 17.2-r2-s11 (including) 17.2-r2-s11 (including)
Junos Juniper 17.2-r2-s4 (including) 17.2-r2-s4 (including)
Junos Juniper 17.2-r2-s6 (including) 17.2-r2-s6 (including)
Junos Juniper 17.2-r2-s7 (including) 17.2-r2-s7 (including)
Junos Juniper 17.2-r3 (including) 17.2-r3 (including)
Junos Juniper 17.2-r3-s1 (including) 17.2-r3-s1 (including)
Junos Juniper 17.2-r3-s2 (including) 17.2-r3-s2 (including)
Junos Juniper 17.2-r3-s3 (including) 17.2-r3-s3 (including)
Junos Juniper 17.2-r3-s4 (including) 17.2-r3-s4 (including)
Junos Juniper 17.2x75 (including) 17.2x75 (including)
Junos Juniper 17.2x75-d100 (including) 17.2x75-d100 (including)
Junos Juniper 17.2x75-d102 (including) 17.2x75-d102 (including)
Junos Juniper 17.2x75-d110 (including) 17.2x75-d110 (including)
Junos Juniper 17.2x75-d50 (including) 17.2x75-d50 (including)
Junos Juniper 17.2x75-d70 (including) 17.2x75-d70 (including)
Junos Juniper 17.2x75-d90 (including) 17.2x75-d90 (including)
Junos Juniper 17.2x75-d91 (including) 17.2x75-d91 (including)
Junos Juniper 17.2x75-d92 (including) 17.2x75-d92 (including)
Junos Juniper 17.3 (including) 17.3 (including)
Junos Juniper 17.3-r1 (including) 17.3-r1 (including)
Junos Juniper 17.3-r1-s1 (including) 17.3-r1-s1 (including)
Junos Juniper 17.3-r1-s4 (including) 17.3-r1-s4 (including)
Junos Juniper 17.3-r2 (including) 17.3-r2 (including)
Junos Juniper 17.3-r2-s1 (including) 17.3-r2-s1 (including)
Junos Juniper 17.3-r2-s2 (including) 17.3-r2-s2 (including)
Junos Juniper 17.3-r2-s3 (including) 17.3-r2-s3 (including)
Junos Juniper 17.3-r2-s4 (including) 17.3-r2-s4 (including)
Junos Juniper 17.3-r2-s5 (including) 17.3-r2-s5 (including)
Junos Juniper 17.3-r3 (including) 17.3-r3 (including)
Junos Juniper 17.3-r3-s1 (including) 17.3-r3-s1 (including)
Junos Juniper 17.3-r3-s12 (including) 17.3-r3-s12 (including)
Junos Juniper 17.3-r3-s2 (including) 17.3-r3-s2 (including)
Junos Juniper 17.3-r3-s3 (including) 17.3-r3-s3 (including)
Junos Juniper 17.3-r3-s4 (including) 17.3-r3-s4 (including)
Junos Juniper 17.3-r3-s5 (including) 17.3-r3-s5 (including)
Junos Juniper 17.3-r3-s6 (including) 17.3-r3-s6 (including)
Junos Juniper 17.3-r3-s7 (including) 17.3-r3-s7 (including)
Junos Juniper 17.3-r3-s8 (including) 17.3-r3-s8 (including)
Junos Juniper 17.4 (including) 17.4 (including)
Junos Juniper 17.4-r1 (including) 17.4-r1 (including)
Junos Juniper 17.4-r1-s1 (including) 17.4-r1-s1 (including)
Junos Juniper 17.4-r1-s2 (including) 17.4-r1-s2 (including)
Junos Juniper 17.4-r1-s3 (including) 17.4-r1-s3 (including)
Junos Juniper 17.4-r1-s4 (including) 17.4-r1-s4 (including)
Junos Juniper 17.4-r1-s5 (including) 17.4-r1-s5 (including)
Junos Juniper 17.4-r1-s6 (including) 17.4-r1-s6 (including)
Junos Juniper 17.4-r1-s7 (including) 17.4-r1-s7 (including)
Junos Juniper 17.4-r2 (including) 17.4-r2 (including)
Junos Juniper 17.4-r2-s1 (including) 17.4-r2-s1 (including)
Junos Juniper 17.4-r2-s10 (including) 17.4-r2-s10 (including)
Junos Juniper 17.4-r2-s11 (including) 17.4-r2-s11 (including)
Junos Juniper 17.4-r2-s2 (including) 17.4-r2-s2 (including)
Junos Juniper 17.4-r2-s3 (including) 17.4-r2-s3 (including)
Junos Juniper 17.4-r2-s4 (including) 17.4-r2-s4 (including)
Junos Juniper 17.4-r2-s5 (including) 17.4-r2-s5 (including)
Junos Juniper 17.4-r2-s6 (including) 17.4-r2-s6 (including)
Junos Juniper 17.4-r2-s7 (including) 17.4-r2-s7 (including)
Junos Juniper 17.4-r2-s8 (including) 17.4-r2-s8 (including)
Junos Juniper 17.4-r2-s9 (including) 17.4-r2-s9 (including)
Junos Juniper 17.4-r3 (including) 17.4-r3 (including)
Junos Juniper 17.4-r3-s1 (including) 17.4-r3-s1 (including)
Junos Juniper 17.4-r3-s2 (including) 17.4-r3-s2 (including)
Junos Juniper 18.1 (including) 18.1 (including)
Junos Juniper 18.1-r (including) 18.1-r (including)
Junos Juniper 18.1-r1 (including) 18.1-r1 (including)
Junos Juniper 18.1-r2 (including) 18.1-r2 (including)
Junos Juniper 18.1-r2-s1 (including) 18.1-r2-s1 (including)
Junos Juniper 18.1-r2-s2 (including) 18.1-r2-s2 (including)
Junos Juniper 18.1-r2-s4 (including) 18.1-r2-s4 (including)
Junos Juniper 18.1-r3 (including) 18.1-r3 (including)
Junos Juniper 18.1-r3-s1 (including) 18.1-r3-s1 (including)
Junos Juniper 18.1-r3-s10 (including) 18.1-r3-s10 (including)
Junos Juniper 18.1-r3-s2 (including) 18.1-r3-s2 (including)
Junos Juniper 18.1-r3-s3 (including) 18.1-r3-s3 (including)
Junos Juniper 18.1-r3-s4 (including) 18.1-r3-s4 (including)
Junos Juniper 18.1-r3-s5 (including) 18.1-r3-s5 (including)
Junos Juniper 18.1-r3-s6 (including) 18.1-r3-s6 (including)
Junos Juniper 18.1-r3-s7 (including) 18.1-r3-s7 (including)
Junos Juniper 18.1-r3-s8 (including) 18.1-r3-s8 (including)
Junos Juniper 18.1-r3-s9 (including) 18.1-r3-s9 (including)
Junos Juniper 18.2 (including) 18.2 (including)
Junos Juniper 18.2-r (including) 18.2-r (including)
Junos Juniper 18.2-r1 (including) 18.2-r1 (including)
Junos Juniper 18.2-r1-s2 (including) 18.2-r1-s2 (including)
Junos Juniper 18.2-r1-s3 (including) 18.2-r1-s3 (including)
Junos Juniper 18.2-r1-s4 (including) 18.2-r1-s4 (including)
Junos Juniper 18.2-r1-s5 (including) 18.2-r1-s5 (including)
Junos Juniper 18.2-r2 (including) 18.2-r2 (including)
Junos Juniper 18.2-r2-s1 (including) 18.2-r2-s1 (including)
Junos Juniper 18.2-r2-s2 (including) 18.2-r2-s2 (including)
Junos Juniper 18.2-r2-s3 (including) 18.2-r2-s3 (including)
Junos Juniper 18.2-r2-s4 (including) 18.2-r2-s4 (including)
Junos Juniper 18.2-r2-s5 (including) 18.2-r2-s5 (including)
Junos Juniper 18.2-r3 (including) 18.2-r3 (including)
Junos Juniper 18.2-r3-s1 (including) 18.2-r3-s1 (including)
Junos Juniper 18.2-r3-s2 (including) 18.2-r3-s2 (including)
Junos Juniper 18.3 (including) 18.3 (including)
Junos Juniper 18.3-r (including) 18.3-r (including)
Junos Juniper 18.3-r1 (including) 18.3-r1 (including)
Junos Juniper 18.3-r1-s1 (including) 18.3-r1-s1 (including)
Junos Juniper 18.3-r1-s2 (including) 18.3-r1-s2 (including)
Junos Juniper 18.3-r1-s3 (including) 18.3-r1-s3 (including)
Junos Juniper 18.3-r1-s4 (including) 18.3-r1-s4 (including)
Junos Juniper 18.3-r1-s5 (including) 18.3-r1-s5 (including)
Junos Juniper 18.3-r1-s6 (including) 18.3-r1-s6 (including)
Junos Juniper 18.3-r2 (including) 18.3-r2 (including)
Junos Juniper 18.3-r2-s1 (including) 18.3-r2-s1 (including)
Junos Juniper 18.3-r2-s2 (including) 18.3-r2-s2 (including)
Junos Juniper 18.3-r2-s3 (including) 18.3-r2-s3 (including)
Junos Juniper 18.3-r3 (including) 18.3-r3 (including)
Junos Juniper 18.4 (including) 18.4 (including)
Junos Juniper 18.4-r1 (including) 18.4-r1 (including)
Junos Juniper 18.4-r1-s1 (including) 18.4-r1-s1 (including)
Junos Juniper 18.4-r1-s2 (including) 18.4-r1-s2 (including)
Junos Juniper 18.4-r1-s3 (including) 18.4-r1-s3 (including)
Junos Juniper 18.4-r1-s4 (including) 18.4-r1-s4 (including)
Junos Juniper 18.4-r1-s5 (including) 18.4-r1-s5 (including)
Junos Juniper 18.4-r1-s6 (including) 18.4-r1-s6 (including)
Junos Juniper 18.4-r1-s7 (including) 18.4-r1-s7 (including)
Junos Juniper 18.4-r2 (including) 18.4-r2 (including)
Junos Juniper 18.4-r2-s1 (including) 18.4-r2-s1 (including)
Junos Juniper 18.4-r2-s2 (including) 18.4-r2-s2 (including)
Junos Juniper 18.4-r2-s3 (including) 18.4-r2-s3 (including)
Junos Juniper 18.4-r2-s4 (including) 18.4-r2-s4 (including)
Junos Juniper 19.1 (including) 19.1 (including)
Junos Juniper 19.1-r1 (including) 19.1-r1 (including)
Junos Juniper 19.1-r1-s1 (including) 19.1-r1-s1 (including)
Junos Juniper 19.1-r1-s2 (including) 19.1-r1-s2 (including)
Junos Juniper 19.1-r1-s3 (including) 19.1-r1-s3 (including)
Junos Juniper 19.1-r1-s4 (including) 19.1-r1-s4 (including)
Junos Juniper 19.1-r1-s5 (including) 19.1-r1-s5 (including)
Junos Juniper 19.1-r2 (including) 19.1-r2 (including)
Junos Juniper 19.1-r2-s1 (including) 19.1-r2-s1 (including)
Junos Juniper 19.2 (including) 19.2 (including)
Junos Juniper 19.2-r1 (including) 19.2-r1 (including)
Junos Juniper 19.2-r1-s1 (including) 19.2-r1-s1 (including)
Junos Juniper 19.2-r1-s2 (including) 19.2-r1-s2 (including)
Junos Juniper 19.2-r1-s3 (including) 19.2-r1-s3 (including)
Junos Juniper 19.2-r1-s4 (including) 19.2-r1-s4 (including)
Junos Juniper 19.3 (including) 19.3 (including)
Junos Juniper 19.3-r1 (including) 19.3-r1 (including)
Junos Juniper 19.3-r1-s1 (including) 19.3-r1-s1 (including)
Junos Juniper 19.3-r2 (including) 19.3-r2 (including)
Junos Juniper 19.3-r2-s1 (including) 19.3-r2-s1 (including)
Junos Juniper 19.3-r2-s2 (including) 19.3-r2-s2 (including)
Junos Juniper 19.3-r2-s3 (including) 19.3-r2-s3 (including)
Junos Juniper 19.3-r2-s4 (including) 19.3-r2-s4 (including)

References