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Vulnerability Details : 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.
Publish Date : 2019-07-02 Last Update Date : 2020-08-24
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- CVSS Scores & Vulnerability Types

CVSS Score
7.8
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 770

- Products Affected By CVE-2019-5599

# Product Type Vendor Product Version Update Edition Language
1 OS Freebsd Freebsd 12.0 P2 * * Version Details Vulnerabilities
2 OS Freebsd Freebsd 12.0 P3 * * Version Details Vulnerabilities
3 OS Freebsd Freebsd 12.0 P4 * * Version Details Vulnerabilities
4 OS Freebsd Freebsd 12.0 P5 * * Version Details Vulnerabilities
5 OS Freebsd Freebsd 12.0 P1 * * Version Details Vulnerabilities
6 OS Freebsd Freebsd 12.0 - * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Freebsd Freebsd 6

- References For CVE-2019-5599

https://support.f5.com/csp/article/K75521003
https://www.kb.cert.org/vuls/id/905115
CERT-VN VU#905115
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
FREEBSD FreeBSD-SA-19:08
http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
https://seclists.org/bugtraq/2019/Jun/27
BUGTRAQ 20190624 FreeBSD Security Advisory FreeBSD-SA-19:08.rack
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
https://security.netapp.com/advisory/ntap-20190625-0004/
http://www.openwall.com/lists/oss-security/2019/06/17/5
MLIST [oss-security] 20190617 Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service issues

- Metasploit Modules Related To CVE-2019-5599

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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