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.
Published: 2020-05-08
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2241-1 linux security update
Debian DLA Debian DLA DLA-2241-2 linux security update
EUVD EUVD EUVD-2020-3124 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.
Ubuntu USN Ubuntu USN USN-4419-1 Linux kernel vulnerabilities
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Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Linux Linux Kernel
Netapp Active Iq Unified Manager Element Software H300e H300e Firmware H300s H300s Firmware H410c H410c Firmware H410s H410s Firmware H500e H500e Firmware H500s H500s Firmware H610c H610c Firmware H610s H610s Firmware H615c H615c Firmware H700e H700e Firmware H700s H700s Firmware Hci Compute Node Hci Management Node Solidfire Steelstore Cloud Integrated Storage
Opensuse Leap
Redhat Enterprise Linux Rhel Extras Rt
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T11:06:11.142Z

Reserved: 2020-03-20T00:00:00.000Z

Link: CVE-2020-10690

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2020-05-08T15:15:11.880

Modified: 2024-11-21T04:55:51.727

Link: CVE-2020-10690

cve-icon Redhat

Severity : Low

Publid Date: 2019-11-25T12:53:00Z

Links: CVE-2020-10690 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses