CVE-2019-5599
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 5.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 5.1% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 5.1% · EPSS, next 30 days
- Weakness
- CWE-770 · Allocation without limits
- Record status
- Modified
Affected
- Freebsd 12.0
Attack profile CVSS 3.0 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-5599.md and follow it. Check whether this project is affected by CVE-2019-5599. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
- https://seclists.org/bugtraq/2019/Jun/27
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
- https://seclists.org/bugtraq/2019/Jun/27
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
References
- http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
- http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
- http://www.openwall.com/lists/oss-security/2019/06/17/5
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
- https://seclists.org/bugtraq/2019/Jun/27
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
- https://security.netapp.com/advisory/ntap-20190625-0004/
- https://support.f5.com/csp/article/K75521003
- https://www.kb.cert.org/vuls/id/905115
- http://packetstormsecurity.com/files/153329/Linux-FreeBSD-TCP-Based-Denial-Of-Service.html
- http://packetstormsecurity.com/files/153378/FreeBSD-Security-Advisory-FreeBSD-SA-19-08.rack.html
- http://www.openwall.com/lists/oss-security/2019/06/17/5
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
- https://seclists.org/bugtraq/2019/Jun/27
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:08.rack.asc
- https://security.netapp.com/advisory/ntap-20190625-0004/
- https://support.f5.com/csp/article/K75521003
- https://www.kb.cert.org/vuls/id/905115