CVE-2021-31379
Summary
| CVE | CVE-2021-31379 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-10-19 19:15:00 UTC |
| Updated | 2021-10-27 12:46:00 UTC |
| Description | 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. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Juniper | Junos | 17.2 | r1 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 17.2 | r1-s8 | All | All |
| Operating System | Juniper | Junos | 17.2 | r2 | All | All |
| Operating System | Juniper | Junos | 17.2 | r2-s11 | All | All |
| Operating System | Juniper | Junos | 17.2 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 17.2 | r2-s6 | All | All |
| Operating System | Juniper | Junos | 17.2 | r2-s7 | All | All |
| Operating System | Juniper | Junos | 17.2 | r3 | All | All |
| Operating System | Juniper | Junos | 17.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 17.2 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 17.2 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 17.2 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | All | All | All |
| Operating System | Juniper | Junos | 17.2x75 | - | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d100 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d102 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d110 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d50 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d70 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d90 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d91 | All | All |
| Operating System | Juniper | Junos | 17.2x75 | d92 | All | All |
| Operating System | Juniper | Junos | 17.3 | - | All | All |
| Operating System | Juniper | Junos | 17.3 | r1 | All | All |
| Operating System | Juniper | Junos | 17.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 17.3 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 17.3 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s12 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s6 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s7 | All | All |
| Operating System | Juniper | Junos | 17.3 | r3-s8 | All | All |
| Operating System | Juniper | Junos | 17.4 | - | All | All |
| Operating System | Juniper | Junos | 17.4 | r1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 17.4 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s10 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s11 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s6 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s7 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s8 | All | All |
| Operating System | Juniper | Junos | 17.4 | r2-s9 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 17.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 18.1 | - | All | All |
| Operating System | Juniper | Junos | 18.1 | r | All | All |
| Operating System | Juniper | Junos | 18.1 | r1 | All | All |
| Operating System | Juniper | Junos | 18.1 | r2 | All | All |
| Operating System | Juniper | Junos | 18.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.1 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s10 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s3 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s4 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s5 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s6 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s7 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s8 | All | All |
| Operating System | Juniper | Junos | 18.1 | r3-s9 | All | All |
| Operating System | Juniper | Junos | 18.2 | - | All | All |
| Operating System | Juniper | Junos | 18.2 | r | All | All |
| Operating System | Juniper | Junos | 18.2 | r1 | All | All |
| Operating System | Juniper | Junos | 18.2 | r1 | - | All |
| Operating System | Juniper | Junos | 18.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.2 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.2 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 18.2 | r2-s5 | All | All |
| Operating System | Juniper | Junos | 18.2 | r3 | All | All |
| Operating System | Juniper | Junos | 18.2 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 18.2 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | - | All | All |
| Operating System | Juniper | Junos | 18.3 | r | All | All |
| Operating System | Juniper | Junos | 18.3 | r1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.3 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 18.3 | r3 | All | All |
| Operating System | Juniper | Junos | 18.4 | - | All | All |
| Operating System | Juniper | Junos | 18.4 | r1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s6 | All | All |
| Operating System | Juniper | Junos | 18.4 | r1-s7 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 18.4 | r2-s4 | All | All |
| Operating System | Juniper | Junos | 19.1 | - | All | All |
| Operating System | Juniper | Junos | 19.1 | r1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.1 | r1-s5 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2 | All | All |
| Operating System | Juniper | Junos | 19.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | - | All | All |
| Operating System | Juniper | Junos | 19.2 | r1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s3 | All | All |
| Operating System | Juniper | Junos | 19.2 | r1-s4 | All | All |
| Operating System | Juniper | Junos | 19.3 | - | All | All |
| Operating System | Juniper | Junos | 19.3 | r1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s3 | All | All |
| Operating System | Juniper | Junos | 19.3 | r2-s4 | All | All |
| Hardware | Juniper | Mx10 | - | All | All | All |
| Hardware | Juniper | Mx10000 | - | All | All | All |
| Hardware | Juniper | Mx10003 | - | All | All | All |
| Hardware | Juniper | Mx10008 | - | All | All | All |
| Hardware | Juniper | Mx10016 | - | All | All | All |
| Hardware | Juniper | Mx104 | - | All | All | All |
| Hardware | Juniper | Mx150 | - | All | All | All |
| Hardware | Juniper | Mx2008 | - | All | All | All |
| Hardware | Juniper | Mx2010 | - | All | All | All |
| Hardware | Juniper | Mx2020 | - | All | All | All |
| Hardware | Juniper | Mx204 | - | All | All | All |
| Hardware | Juniper | Mx240 | - | All | All | All |
| Hardware | Juniper | Mx40 | - | All | All | All |
| Hardware | Juniper | Mx480 | - | All | All | All |
| Hardware | Juniper | Mx5 | - | All | All | All |
| Hardware | Juniper | Mx80 | - | All | All | All |
| Hardware | Juniper | Mx960 | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 2021-10 Security Bulletin: Junos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends malformed IPv4 or IPv6 traffic inside the MAP-E tunnel. (CVE-2021-31379) - Juniper Networks | CONFIRM | kb.juniper.net | |
| Configuring Mapping of Address and Port with Encapsulation (MAP-E) - TechLibrary - Juniper Networks | MISC | www.juniper.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.