CVE-2023-44203 — Improper Check or Handling of Exceptional Conditions in Networks Junos OS
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 79.21%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 13
Description
An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600 allows a adjacent attacker to send specific traffic, which leads to packet flooding, resulting in a Denial of Service (DoS).
When a specific IGMP packet is received in an isolated VLAN, it is duplicated to all other ports under the primary VLAN, which causes a flood.
This issue affects QFX5000 serie…
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6
Affected Packages2 packages
🔴Vulnerability Details
2GHSA▶
GHSA-cjff-m8pq-m7x6: An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Se↗2023-10-13
CVEList▶
Junos OS: QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600: Packet flooding will occur when IGMP traffic is sent to an isolated VLAN↗2023-10-12
📋Vendor Advisories
1Juniper▶
CVE-2023-44203:
An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 S↗2023-10-13