#VU17084 Untrusted pointer dereference in Juniper Junos OS - CVE-2019-0006

Vulnerability identifier: #VU17084

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-0006

CWE-ID: CWE-822

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 or execute arbitrary code.

The weakness exists due to an uninitialized function pointer dereference in the Packet Forwarding Engine manager (fxpc) on all EX, QFX and MX Series devices in a Virtual Chassis configuration. A remote attacker can send specially crafted HTTP packets to cause the fxpc daemon crash or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
The vulnerability has been addressed in the versions 14.1X53-D47, 15.1R7-S3, 16.1R1.

Vulnerable software versions

Juniper Junos OS: 14.1X53-D15 - 14.1x53, 15.1R - 15.1, 16.1R

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External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10906&cat=SIRT_1&actp=LIST

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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.