Buffer overflow in Juniper Junos OS - CVE-2019-0055

 

Buffer overflow in Juniper Junos OS - CVE-2019-0055

Published: October 10, 2019


Vulnerability identifier: #VU21692
CSH Severity: Medium
CVSS v4.0: 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-2019-0055
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS

Detailed vulnerability description

The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.

The vulnerability exists due to a boundary error in the SIP ALG packet processing service. A remote attacker can send a specific types of valid SIP traffic to the device, cause flowd process to crash, trigger memory corruption and cause a denial of service condition.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2019-0055

Install updates from vendor's website.

Sources