CVE-2019-5599 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5