Vulnerability Monitor

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CVE-2020-7453

In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option "osrelease" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory.

Published

2020-04-29T00:15:12.093

Last Modified

2024-11-21T05:37:10.490

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.0 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:P/A:N

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

3.4

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-754
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 11.3 Yes
Operating System freebsd freebsd 12.1 Yes
Operating System freebsd freebsd 12.1 Yes
Operating System freebsd freebsd 12.1 Yes
References