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FreeBSD: VID-86C89ABF-2D91-11E9-BF3E-A4BADB2F4699 (CVE-2019-5596): FreeBSD -- File description reference count leak

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FreeBSD: VID-86C89ABF-2D91-11E9-BF3E-A4BADB2F4699 (CVE-2019-5596): FreeBSD -- File description reference count leak

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
02/05/2019
Created
03/19/2019
Added
02/11/2019
Modified
05/07/2019

Description

In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.

Solution(s)

  • freebsd-upgrade-base-12_0-release-p3

References

  • CVE-2019-5596

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