CVE-2021-0299
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Juniper Networks | Junos OS | unspecified < 19.4R1 | unaffected |
| Juniper Networks | Junos OS | 19.4 < 19.4R3 | affected |
| Juniper Networks | Junos OS | 20.1 < 20.1R2 | affected |
| Juniper Networks | Junos OS | 20.2 < 20.2R1-S1, 20.2R2 | affected |
Weaknesses
- CWE-755: CWE-755 Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Workarounds
There are no viable workarounds for this issue.
ADP Enrichment
CVE Program Container
Additional References
References
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