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CVE-2020-7453
Published: Apr 28, 2020
Modified: Aug 4, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | FreeBSD | affected 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, 11.3-RELEASE before 11.3-RELEASE-p7 |
References
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:08.jail.asc
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