High severity · published Jul 2, 2019
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…
7.5
CVSS
5.1%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.1% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
12.0; 12.0; 12.0; 12.0; 12.0; 12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5599
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5599
Third Party Advisory
http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
Third Party Advisory
http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
Mailing List
http://www.openwall.com/lists/oss-security/2019/06/17/5
Mitigation
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
Mailing List
https://seclists.org/bugtraq/2019/Jun/27
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