A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2785-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2843-1 linux security update
Debian DSA Debian DSA DSA-4978-1 linux security update
EUVD EUVD EUVD-2021-27028 A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.
Ubuntu USN Ubuntu USN USN-5113-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5115-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5117-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5136-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5137-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5137-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6221-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:09:08.286Z

Reserved: 2021-08-31T00:00:00

Link: CVE-2021-3753

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-16T19:15:08.647

Modified: 2024-11-21T06:22:20.623

Link: CVE-2021-3753

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-01T11:30:00Z

Links: CVE-2021-3753 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses