CVE-2019-5599 json
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 attacke…
published 2019-07-02 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-15174
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.1%
- EPSS 5.1% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- seclists.org/bugtraq/2019/Jun/27 advisory
Exploit prediction
5.08% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- n/a FreeBSD
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
seclists.org
/bugtraq/2019/Jun/27
mailing-list, mitigation, patch, third-party-advisory
-
security.freebsd.org
/advisories/FreeBSD-SA-19:08.rack.asc
vendor-advisory, mitigation
-
openwall.com
/lists/oss-security/2019/06/17/5
mailing-list, third-party-advisory
-
github.com
/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
mitigation, third-party-advisory
-
packetstormsecurity.com
/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
third-party-advisory, vdb-entry
-
kb.cert.org
/vuls/id/905115
third-party-advisory, us-government-resource
-
packetstormsecurity.com
/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
third-party-advisory, vdb-entry
-
support.f5.com
/csp/article/K75521003
third-party-advisory
-
kb.pulsesecure.net
/articles/Pulse_Security_Advisories/SA44193
third-party-advisory
-
security.netapp.com
/advisory/ntap-20190625-0004/
third-party-advisory
Sources
- CVE List CVE-2019-5599
- NVD CVE-2019-5599
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.