CVE-2020-7460 Information

Description

In FreeBSD 12.1-STABLE before r363918 12.1-RELEASE before p8 11.4-STABLE before r363919 11.4-RELEASE before p2 and 11.3-RELEASE before p12 the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc https://security.netapp.com/advisory/ntap-20200821-0005/ https://www.zerodayinitiative.com/advisories/ZDI-20-949/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0