Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability

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.

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双重释放

Linux kernel 安全漏洞

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于在 Linux 内核的 CAPI over Bluetooth 连接代码中发现了一个缺陷。攻击者可利用该漏洞当CAPI (ISDN) 硬件连接失败时，可以提升权限。

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