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CVE-2021-34981

Опубликовано: 07 мая 2024
Источник: debian
EPSS Низкий

Описание

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
linuxfixed5.10.46-1package
linuxfixed4.19.194-1busterpackage
linuxfixed4.9.272-1stretchpackage

Примечания

  • https://www.zerodayinitiative.com/advisories/ZDI-21-1223/

  • https://git.kernel.org/linus/3cfdf8fcaafa62a4123f92eb0f4a72650da3a479 (5.14-rc1)

EPSS

Процентиль: 2%
0.00015
Низкий

Связанные уязвимости

CVSS3: 7.5
ubuntu
около 1 года назад

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS3: 7.5
redhat
больше 3 лет назад

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS3: 7.5
nvd
около 1 года назад

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS3: 7.5
github
около 1 года назад

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the CMTP module. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-11977.

CVSS3: 7.5
fstec
около 4 лет назад

Уязвимость модуля CMTP (kernel/net/bluetooth/cmtp) ядра операционных систем Linux, позволяющая нарушителю повысить свои привилегии или выполнить произвольный код

EPSS

Процентиль: 2%
0.00015
Низкий