Home/CVE/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 c
CVE

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 c

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.

HIGH · CVSS 7.5 EPSS 0.09306
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  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

1
freebsdall versions
⚠

Public Exploits & PoCs

2
pocpacketstormsecurity.com · Linux-FreeBSD-TCP-Based-Denial-Of-Service.htmlpacketstormsecurity.com
pocpacketstormsecurity.com · FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.htmlpacketstormsecurity.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · secteam@freebsd.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Jul 2019 · 09:15 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2019/06/17/5Mailing ListThird Party Advisory
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.mdMitigationThird Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193Third Party Advisory
https://seclists.org/bugtraq/2019/Jun/27Mailing ListMitigationPatchThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.ascMitigationVendor Advisory
https://security.netapp.com/advisory/ntap-20190625-0004/Third Party Advisory
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