Vulnerability Monitor

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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.

Published

2019-07-02T21:15:11.213

Last Modified

2024-11-21T04:45:12.517

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-770

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes
Operating System	freebsd	freebsd	12.0	Yes

References

http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html Third Party Advisory, VDB Entry ([email protected])
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html Third Party Advisory, VDB Entry ([email protected])
http://www.openwall.com/lists/oss-security/2019/06/17/5 Mailing List, Third Party Advisory ([email protected])
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Mitigation, Third Party Advisory ([email protected])
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 Third Party Advisory ([email protected])
https://seclists.org/bugtraq/2019/Jun/27 Mailing List, Mitigation, Patch, Third Party Advisory ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc Mitigation, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190625-0004/ Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K75521003 Third Party Advisory ([email protected])
https://www.kb.cert.org/vuls/id/905115 Third Party Advisory, US Government Resource ([email protected])
http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/06/17/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Jun/27 Mailing List, Mitigation, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190625-0004/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K75521003 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/905115 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)