CVE-2019-16159

Description

BIRD Internet Routing Daemon 1.6.x through 1.6.7 and 2.x through 2.0.5 has a stack-based buffer overflow. The BGP daemon's support for RFC 8203 administrative shutdown communication messages included an incorrect logical expression when checking the validity of an input message. Sending a shutdown communication with a sufficient message length causes a four-byte overflow to occur while processing the message, where two of the overflow bytes are attacker-controlled and two are fixed.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 4.29% Top 15%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory network.cz Vendor Advisory network.cz Vendor Advisory network.cz Vendor Advisory network.cz
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gitlab.labs.nic.cz/labs/bird/commit/8388f5a7e14108a1458fea35bfbb5a453e2c563c third party advisory patch
https://gitlab.labs.nic.cz/labs/bird/commit/1657c41c96b3c07d9265b07dd4912033ead4124b third party advisory patch
http://trubka.network.cz/pipermail/bird-users/2019-September/013718.html vendor advisory
http://trubka.network.cz/pipermail/bird-users/2019-September/013720.html vendor advisory
http://trubka.network.cz/pipermail/bird-users/2019-September/013722.html vendor advisory
http://bird.network.cz vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F23NNAPXX65MGJQBPPTVGRV3T4XCKBV/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MCVNQJBZYGGNAJNGOFEBE3IAJME2QIZB/ vendor advisory
https://seclists.org/bugtraq/2019/Sep/34 third party advisory mailing list
https://www.debian.org/security/2019/dsa-4528 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00063.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00065.html vendor advisory mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-16159?
CVE-2019-16159 has been scored as a high severity vulnerability.
How to fix CVE-2019-16159?
To fix CVE-2019-16159, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-16159 being actively exploited in the wild?
It is possible that CVE-2019-16159 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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