Stack-based buffer overflow in BIRD Internet Routing Daemon - CVE-2019-16159

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Main Vulnerability Database Vulnerabilities #VU21407

Stack-based buffer overflow in BIRD Internet Routing Daemon - CVE-2019-16159

Published: September 29, 2019


Vulnerability identifier: #VU21407
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-16159
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: CZ.NIC Labs
Affected software:
BIRD Internet Routing Daemon

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system or perform denial of service attack.

The vulnerability exists due to a boundary error when checking validity of BGP administrative shutdown communication messages. A remote unauthenticated attacker can send a specially crafted administrative shutdown communication message, trigger a four-byte stack-based buffer overflow and perform denial of service attack or execute arbitrary code on the target system.


How to mitigate CVE-2019-16159

Install updates from vendor's website.

Sources