CVE-2020-1646 — Improper Handling of Invalid Use of Special Elements in Networks Junos OS Evolved

CWE-159 — Improper Handling of Invalid Use of Special Elements CWE-20 — Improper Input Validation4 documents4 sources

Severity

7.5HIGHNVD

EPSS

0.4%

top 39.99%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Juniper Networks Junos OS Evolved Juniper Networks Junos OS Juniper Junos +1 more

Timeline

PublishedJul 17

Latest updateMay 24

Description

On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) crash and restart. This issue occurs only when the device is receiving and processing the BGP UPDATE for an EBGP peer. This issue does not occur when the device is receiving and processing the BGP UPDATE for an IBGP peer. However, the offending BGP UPDATE can originally come from an EBGP peer, propagates through the network via IBGP peers without cau…

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 Packages4 packages

▶CVEListV5juniper_networks/junos_os_evolvedunspecified — 19.3R1-EVO+1

▶CVEListV5juniper_networks/junos_os17.3R3-S6, 17.4R2-S7, 18.1R3-S7+2

▶NVDjuniper/junos_os_evolved19.2

▶NVDjuniper/junos17.3, 17.4, 18.1+2

🔴Vulnerability Details

GHSA

GHSA-3vf8-2x93-3hff: On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) cr↗2022-05-24

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CVEList

Junos OS and Junos OS Evolved: RPD crash while processing a specific BGP update information.↗2020-07-17

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📋Vendor Advisories

Juniper

CVE-2020-1646: On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) cr↗2020-07-17

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