Stack-based buffer overflow in SBR Carrier - CVE-2021-0276
Published: July 19, 2021
Vulnerability identifier: #VU54992
CSH Severity: Critical
CVSSv4.0: 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:Red
CVE-ID: CVE-2021-0276
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SBR Carrier
SBR Carrier
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing packets in in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured. A remote unauthenticated attacker can send specially crafted packets to the device, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.