Vulnerability identifier: #VU10654
Vulnerability risk: Low
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Quagga
Server applications /
Other server solutions
Vendor: quagga.net
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.
Mitigation
Update to version 1.2.2.
Vulnerable software versions
Quagga: 1.0.20160309 - 1.2.1
External links
http://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.