Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-0217 |
CWE-ID | CWE-400 |
Exploitation vector | Local network |
Public exploit | N/A |
Vulnerable software Subscribe |
Juniper Junos OS Operating systems & Components / Operating system |
Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU49548
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-0217
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing DHCP packets from adjacent clients on EX Series and QFX Series switches. An attacker on the local network can send specially crafted HDCP packets to the affected system and exhaust DMA memory or crash the fxpc process.
MitigationInstall updates from vendor's website.
This issue affects Juniper Networks Junos OS on EX Series and QFX Series:
Junos OS versions prior to 17.4R3 are unaffected by this vulnerability.
Vulnerable software versionsJuniper Junos OS: 17.4 - 20.3
External linkshttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA11107&cat=SIRT_1&actp=LIST
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.