CVE-2019-5599

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.

Score

CVSS 3.0 7.5 High

Status

Modified - secteam@freebsd.org

Published

2019-07-02

Last modified

2024-08-04

Weaknesses

CWE-770

Affected products

• Freebsd (Freebsd)

References

• http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
• http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
• 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
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
• https://seclists.org/bugtraq/2019/Jun/27
• https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
• https://security.netapp.com/advisory/ntap-20190625-0004/
• https://support.f5.com/csp/article/K75521003
• https://www.kb.cert.org/vuls/id/905115