The Quagga BGP daemon (bgpd) prior to version 1.2.3 does not properly bounds check the data sent with a NOTIFY to a peer, if an attribute length is invalid. Arbitrary data from the bgpd process may be sent over the network to a peer and/or bgpd may crash.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-0543.txt | vendor advisory |
| https://usn.ubuntu.com/3573-1/ | third party advisory vendor advisory |
| https://www.debian.org/security/2018/dsa-4115 | third party advisory vendor advisory |
| http://savannah.nongnu.org/forum/forum.php?forum_id=9095 | third party advisory |
| https://security.gentoo.org/glsa/201804-17 | third party advisory vendor advisory |
| http://www.kb.cert.org/vuls/id/940439 | third party advisory us government resource |