CVE-2016-4049
HighSummary
The bgp_dump_routes_func function in Quagga does not perform size checks when dumping data, which might allow remote attackers to cause a denial of service (assertion failure and daemon crash) via a large BGP packet.
Risk Assessment
Attackers may exploit this vulnerability to disrupt BGP service, potentially leading to network availability issues.
Recommendation
It is recommended to update Quagga to the latest version that includes security fixes and to implement additional size checks for BGP packets.
Other vulnerabilities in Quagga
See all- CVE-2017-16227High
The aspath_put function in Quagga before version 1.2.2 allows remote attackers to cause a denial of service (session drop) via BGP UPDATE messages. A flaw in AS_PATH size calculation for long paths counts certain bytes twice, leading to the construction of an invalid message.
- CVE-2017-5495High
All versions of Quagga from 0.93 to 1.1.0 are vulnerable to unbounded memory allocation in the telnet 'vty' CLI, leading to Denial-of-Service for Quagga daemons or even the entire host. An attacker can exploit this vulnerability by sending very long strings without a newline.
Original NVD description (English source)
The bgp_dump_routes_func function in bgpd/bgp_dump.c in Quagga does not perform size checks when dumping data, which might allow remote attackers to cause a denial of service (assertion failure and daemon crash) via a large BGP packet.