Description
In FreeBSD 12.0-STABLE before r349197 and 12.0-RELEASE before 12.0-RELEASE-p6, a bug in the non-default RACK TCP stack can allow an attacker to cause several linked lists to grow unbounded and cause an expensive list traversal on every packet being processed, leading to resource exhaustion and a denial of service.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a FreeBSD
FreeBSD 12.0 before 12.0-RELEASE-p6affected
References
- http://www.openwall.com/lists/oss-security/2019/06/17/5 ↗
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md ↗
- http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html ↗
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc ↗
- https://www.kb.cert.org/vuls/id/905115 ↗
- https://seclists.org/bugtraq/2019/Jun/27 ↗
- http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html ↗
- https://support.f5.com/csp/article/K75521003 ↗
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 ↗
- https://security.netapp.com/advisory/ntap-20190625-0004/ ↗