CVE-2020-1672 — Improper Input Validation in Networks Junos OS

CWE-20 — Improper Input Validation4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.3%
top 47.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OSJuniper Junos
Timeline
PublishedOct 16
Latest updateMay 24

Description

On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior …

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_os17.3 — 17.3R3-S9+11
▶NVDjuniper/junos11 versions+10

🔴Vulnerability Details

2
GHSA
GHSA-44r3-5r2m-3rw8: On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon↗2022-05-24
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CVEList
Junos OS: jdhcpd process crash when processing a specific DHCPDv6 packet in DHCPv6 relay configuration.↗2020-10-16
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📋Vendor Advisories

1
Juniper
CVE-2020-1672: On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhc↗2020-10-16
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CVE-2020-1672 — Improper Input Validation | cvebase