CVE-2020-10690

At a glance

Severity: MEDIUM 6.5
EPSS: EPSS 0.36 % · percentile 29 (2026-10-27)
State: PUBLISHED
Published: 2020-05-08
Updated: 2024-08-04
Assigner: redhat
NVD status: Modified

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H	redhat
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H	NVD · secalert@redhat.com (Secondary)
CVSS 3.1	MEDIUM 6.4	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 4.4	AV:L/AC:M/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-416

European references

ENISA EUVD · EUVD-2020-3124
GCVE · GCVE-0-2020-10690

CERT-FR advisories

CERTFR-2022-AVI-267 — Multiples vulnérabilités dans Juniper Networks Junos Space · cert.ssi.gouv.fr
CERTFR-2020-AVI-612 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
CERTFR-2020-AVI-547 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2020-AVI-489 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2020-AVI-421 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2020-AVI-376 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2020-AVI-368 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
CERTFR-2020-AVI-318 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* < 5.5
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*

Affected products

Product	Versions
Red Hat · kernel	affected all kernel versions before 5.5

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD