CVE-2019-12255 Information

Description

Wind River VxWorks has a Buffer Overflow in the TCP component (issue 1 of 4). This is a IPNET security vulnerability: TCP Urgent Pointer = 0 that leads to an integer underflow.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://packetstormsecurity.com/files/154022/VxWorks-6.8-Integer-Underflow.html https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009 https://security.netapp.com/advisory/ntap-20190802-0001/ https://support.f5.com/csp/article/K41190253 https://support.f5.com/csp/article/K41190253?utm_source=f5support&utm_medium=RSS https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12255 https://support2.windriver.com/index.php?page=security-notices https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8