Buffer overflow in Juniper Ex4600
CVE-2022-22188
An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packet forwarding engine (PFE) of Juniper Networks Junos OS allows a network-based unauthenticated attacker to flood the device with traffic leading to a Denial of Service (DoS). The device must be configured with storm control profiling limiting the number of unknown broadcast, multicast, or unicast traffic to be vulnerable to this issue. This issue affects: Juniper Networks Junos OS on QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series; 20.2 version 20.2R1 and later versions prior to 20.2R2. This issue does not affect: Juniper Networks Junos OS versions prior to 20.2R1.
Vulnerability class: Buffer Overflow
EPSS: 0.015 (73.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Ex4600
- Juniper Ex4650
- Juniper Junos — versions 20.2
- Juniper Qfx5100
- Juniper Qfx5110
- Juniper Qfx5120
- Juniper Qfx5200
- Juniper Qfx5210
- Juniper Networks Junos Os — versions unspecified, 20.2R1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sirt@juniper.net (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-22188?
- CVE-2022-22188 is a high-severity vulnerability in Juniper Ex4600, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2022-04-14.
- How severe is CVE-2022-22188?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-22188 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.