CVE-2020-1649 — Improper Input Validation in Networks Junos OS

CWE-20 — Improper Input Validation4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 38.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OSJuniper Junos
Timeline
PublishedJul 17
Latest updateMay 24

Description

When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, used by L2TP, MAP-E, GRE, and IPIP, the packet forwarding engine (PFE) will become disabled upon receipt of small fragments requiring reassembly, generating the following error messages: [LOG: Err] MQSS(2): WO: Packet Error - Error Packets 1, Connection 29 [LOG: Err] eachip_hmcif_rx_intr_handler(7259): EA[2:0]: HMCIF Rx: Injected checksum error dete…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5juniper_networks/junos_os17.2 — 17.2R3-S4+10
▶NVDjuniper/junos11 versions+10

🔴Vulnerability Details

2
GHSA
GHSA-3cqj-w9mm-gpc5: When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, u↗2022-05-24
▶
CVEList
Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of small fragments requiring reassembly↗2020-07-17
▶

📋Vendor Advisories

1
Juniper
CVE-2020-1649: When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, u↗2020-07-17
▶
CVE-2020-1649 — Improper Input Validation | cvebase