CVE-2016-4049 Denial of service in n/a

What is CVE-2016-4049?

CVE-2016-4049 is a high-severity denial of service vulnerability in Opensuse Leap, published on 23 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-20

Which versions are affected by CVE-2016-4049?

It affects 3 products.

Products include Opensuse Leap, Opensuse Opensuse, Quagga Quagga.

How do I fix CVE-2016-4049?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-4049 being exploited?

There is no known exploitation of CVE-2016-4049 in the wild and no public exploit code.

Other vulnerabilities in Opensuse Leap

• CVE-2015-4902 Oracle Java SE Integrity Check Exploited Medium 5.3
• CVE-2017-14804 package builds could use directory traversal to write outside of target area Critical 9.9
• CVE-2019-20787 Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size. Critical 9.8
• CVE-2019-8341 Code injection in n/a Critical 9.8
• CVE-2019-6438 Other in n/a Critical 9.8

All Opensuse Leap vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5crg-85w6-wxj6, MGASA-2016-0165, SUSE-SU-2016:1482-1, SUSE-SU-2016:1483-1, UBUNTU-CVE-2016-4049.