CVE-2019-8460
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.
La versión del núcleo de OpenBSD anterior o igual a la versión 6.5 se puede forzar a crear largas cadenas de agujeros TCP SACK que provocan llamadas muy costosas a tcp_sack_option () para cada paquete SACK entrante que puede conducir a una denegación de servicio.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-02-18 CVE Reserved
- 2019-08-26 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-04 First Exploit
- 2024-08-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-1049: Excessive Data Query Operations in a Large Data Table
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20190905-0001 | Third Party Advisory |
|
| https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03 | X_refsource_misc |
| URL | Date | SRC |
|---|---|---|
| https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig | 2024-08-04 | |
| https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460 | 2024-08-04 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f | 2021-08-02 |
| URL | Date | SRC |
|---|