CVE-2020-36557

A use-after-free flaw was found in the Linux kernel’s Virtual Terminal subsystem in how a user calls the VTDISALLOCATE ioctl during the closing/opening of ttys. This flaw allows a local user to crash the system...

DEBIAN-CVE-2020-36557

A race condition in the Linux kernel before 5.6.2 between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free...

CLSA-2022-1655822512 Fixed 6 CVEs in kernel

net: qrtr: fix another OOB Read in qrtrendpointpost CVE-2021-3743 - vt: keyboard: avoid signed integer overflow in kascii CVE-2020-13974 - pNFS/flexfiles: fix incorrect size check in decodenfsfh CVE-2021-4157 - esp: Fix possible buffer overflow in ESP transformation CVE-2022-27666 - sock: remove...

kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c

A flaw integer overflow in the Linux kernel's virtual terminal keyboard driver was found in the way the user sends some specific keyboard code multiple times. A local user could use this flaw to crash the system or possibly escalate their privileges on the system...

kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c

A flaw integer overflow in the Linux kernel's virtual terminal keyboard driver was found in the way the user sends some specific keyboard code multiple times. A local user could use this flaw to crash the system or possibly escalate their privileges on the system...

BusyBox through 1.35.0 allows remote attackers to execute arbitrary code if netstat is used to print a DNS PTR record's value to a VT compatible terminal. Alternatively the attacker could choose to change the terminal's colors.

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DEBIAN-CVE-2021-3753

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

CVE-2021-3753

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

OESA-2021-1453 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve th...

USN-5137-2: Linux kernel vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5137-1: Linux kernel vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5136-1: Linux kernel vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

USN-5136-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service system crash or possibly execute arbitrary code...

CVE-2020-13974

A flaw integer overflow in the Linux kernel's virtual terminal keyboard driver was found in the way the user sends some specific keyboard code multiple times. A local user could use this flaw to crash the system or possibly escalate their privileges on the system. Mitigation Mitigation for this...

USN-5117-1 linux-oem-5.13 vulnerabilities

It was discovered that the btrfs file system in the Linux kernel did not properly handle removing a non-existent device id. An attacker with CAPSYSADMIN could use this to cause a denial of service. CVE-2021-3739 It was discovered that the Qualcomm IPC Router protocol implementation in the Linux...

USN-5115-1: Linux kernel (OEM) vulnerabilities

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information WiFi network traffic. CVE-2020-3702 Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk discovered that the BPF...

USN-5113-1: Linux kernel vulnerabilities

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information WiFi network traffic. CVE-2020-3702 Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not...

SUSE: Security Advisory (SUSE-SU-2021:3206-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CLSA-2021-1632261812 Fix of CVE: CVE-2020-25211, CVE-2020-25656, CVE-2019-19532, CVE-2020-29661

CKSIX-277: CVE-2020-29661: tty: Fix -pgrp locking in tiocspgrp - CKSIX-277: CVE-2020-25656: vt: keyboard, extend funcbuflock to readers - CKSIX-277: CVE-2020-25656: tty/vt: fix write/write race in ioctlKDSKBSENT handler - CKSIX-277: CVE-2020-25656: vt: keyboard, simplify vtkdgkbsent - CKSIX-277:...

kernel: race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys, causing a use-after-free in con_shutdown().

A use-after-free flaw was found in the Linux kernel’s Virtual Terminal subsystem in how a user calls the VTDISALLOCATE ioctl during the closing/opening of ttys. This flaw allows a local user to crash the system...