CVEvulnerability

CVE-2020-10690

6.4 MEDIUM Published 2020-05-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-05-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
6.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-416

Description

There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.

Affected configurations

• linux linux kernel (< 5.5) • redhat enterprise linux 7.0 • redhat enterprise linux 8.0 • debian debian linux 8.0 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • opensuse leap 15.1 • netapp active iq unified manager • netapp element software • netapp hci management node • netapp solidfire • netapp steelstore cloud integrated storage • netapp hci compute node • netapp h300s firmware • netapp h500s firmware • netapp h700s firmware • netapp h300e firmware • netapp h500e firmware • netapp h700e firmware • netapp h410s firmware • netapp h410c firmware • netapp h610c firmware • netapp h610s firmware • netapp h615c firmware

Related

Weakness · CWE (1)

References