Denial of service in Quagga - CVE-2017-16227
Published: February 19, 2018
Vulnerability identifier: #VU10654
CSH Severity: Low
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:Clear
CVE-ID: CVE-2017-16227
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: quagga.net
Affected software:
Quagga
Quagga
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the Quagga BGP daemon due to AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message. A remote attacker can іsupply specially crafted BGP UPDATE messages and cause session drop.
The weakness exists in the Quagga BGP daemon due to AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message. A remote attacker can іsupply specially crafted BGP UPDATE messages and cause session drop.
How to mitigate CVE-2017-16227
Update to version 1.2.2.