kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

A locking vulnerability was found in the tty subsystem of the Linux kernel in drivers/tty/ttyjobctrl.c. This flaw allows a local attacker to possibly corrupt memory or escalate privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability...

PT-2021-7998 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a null pointer dereference during tty device unregistration in the Linux kernel. Multiple ttys try to claim the same minor number, causing a double unregistrati...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

A locking vulnerability was found in the tty subsystem of the Linux kernel in drivers/tty/ttyjobctrl.c. This flaw allows a local attacker to possibly corrupt memory or escalate privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...

kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

A locking vulnerability was found in the tty subsystem of the Linux kernel in drivers/tty/ttyjobctrl.c. This flaw allows a local attacker to possibly corrupt memory or escalate privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - mwifiexcmd80211adhocstart in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to...

CVE-2021-20219

A denial of service vulnerability was found in nttyreceivecharspecial in drivers/tty/ntty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop due to a changing ldata-readhead, and a missing sanity check and cause a threat to the system availabili...

Denial of service

A denial of service vulnerability was found in nttyreceivecharspecial in drivers/tty/ntty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop due to a changing ldata-readhead, and a missing sanity check and cause a threat to the system availabili...

CVE-2021-20219

A denial of service vulnerability was found in nttyreceivecharspecial in drivers/tty/ntty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop due to a changing ldata-readhead, and a missing sanity check and cause a threat to the system availabili...

CVE-2021-20219

CVE-2021-20219: Linux kernel DoS in n_tty_receive_char_special (drivers/tty/n_tty.c). Local attacker with unprivileged user can delay the loop (ldata->read_head changes) due to a missing sanity check, impacting availability. The initial doc does not specify affected kernel versions, patches, o...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-4751-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4751-1 advisory. It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive...

Linux kernel 安全漏洞

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A denial of service vulnerability exists in nttyreceivecharspecial in drivers/tty/ntty.c in Linux kernel versions pri...

CVE-2021-20219: Incorrect Comparison

A denial of service vulnerability was found in nttyreceivecharspecial in drivers/tty/ntty.c of the Linux kernel. In this flaw a local attacker with a normal user privilege could delay the loop due to a changing ldata-readhead, and a missing sanity check and cause a threat to the system availabili...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4748-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4748-1 advisory. It was discovered that the jfs file system implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...

kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

A locking vulnerability was found in the tty subsystem of the Linux kernel in drivers/tty/ttyjobctrl.c. This flaw allows a local attacker to possibly corrupt memory or escalate privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability...

Buffer overflow

Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size before copying into buffer in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music,...

CVE-2020-11227

CVE-2020-11227 describes an out-of-bounds write during RTT/TTY packet parsing caused by a missing buffer-size check prior to copying into a buffer in multiple Qualcomm/Snapdragon components (Auto, Compute, Connectivity, Consumer IoT, Industrial IoT, IoT, Mobile, Voice & Music, Wearables). Root ca...

CVE-2020-11227

Out of bound write while parsing RTT/TTY packet parsing due to lack of check of buffer size before copying into buffer in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music,...