CVEvulnerability

CVE-2020-7453

6.0 MEDIUM Published 2020-04-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0 ([email protected])
3.3 LOW — AV:L/AC:M/Au:N/C:P/I:P/A:N
Weaknesses
CWE-754

Description

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.

Affected configurations

• freebsd freebsd 11.3 • freebsd freebsd 12.1

Related

Weakness · CWE (1)

  • CWE-754 Improper Check for Unusual or Exceptional Conditions weakness

References