Permissions, Privileges, and Access Controls in FreeBSD - CVE-2019-5602

 

Permissions, Privileges, and Access Controls in FreeBSD - CVE-2019-5602

Published: July 3, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU35768
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-5602
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: FreeBSD Foundation
Affected software:
FreeBSD

Detailed vulnerability description

The vulnerability allows a remote authenticated user to execute arbitrary code.

In FreeBSD 12.0-STABLE before r349628, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349629, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory when media is present thereby allowing a malicious user in the operator group to gain root privileges.


How to mitigate CVE-2019-5602

Install update from vendor's website.

Sources