Buffer overflow in Junos OS - CVE-2019-0055
Published: October 10, 2019
Vulnerability identifier: #VU21692
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2019-0055
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Junos OS
How to mitigate CVE-2019-0055
Install updates from vendor's website.
Junos OS - addressed in versions 12.3X48-D61, 12.3X48-D65, 15.1X49-D130, 17.3R3, 17.4R2, 18.1R1