#VU7536 Resource exhaustion in Juniper Junos OS - CVE-2017-2348

Vulnerability identifier: #VU7536

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-2348

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to resource exhaustion. A remote attacker can send a specially crafted IPv6 UDP packet to cause the target Juniper Enhanced jdhcpd daemon to consume excessive CPU resources and crash or restart.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
The vulnerability is addressed in the following versions:
14.1X53-D12, 14.1X53-D38, 14.1X53-D40, 15.1F2-S18, 15.1R4, 15.1X49-D80, 15.1X53-D51, 15.1X53-D60, 16.1R1.

Vulnerable software versions

Juniper Junos OS: 14.1x53, 15.1X49 - 15.1

---

External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10800

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.