CVE-2019-5599 — HIGH (7.5) — White Hats Nepal

Vulnerability 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 Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	12.0

Related Weaknesses (CWE)

CWE-770

References

http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2019/06/17/5Mailing ListThird Party Advisory
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-partyMitigationThird Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193Third Party Advisory
https://seclists.org/bugtraq/2019/Jun/27Mailing ListMitigationPatch
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.ascMitigationVendor Advisory
https://security.netapp.com/advisory/ntap-20190625-0004/Third Party Advisory
https://support.f5.com/csp/article/K75521003Third Party Advisory
https://www.kb.cert.org/vuls/id/905115Third Party AdvisoryUS Government Resource
http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-SeThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2019/06/17/5Mailing ListThird Party Advisory
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-partyMitigationThird Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193Third Party Advisory

FAQ

What is CVE-2019-5599?

CVE-2019-5599 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 a...

How severe is CVE-2019-5599?

CVE-2019-5599 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-5599?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.