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Linux 2.4 Kernel execve() System Call Race Condition Vulnerability
A race condition vulnerability has been discovered in the Linux execve() system call, affecting the 2.4 kernel tree. The problem lies in the atomicity of placing a target executables file descriptor within the current process descriptor and executing the file. An attacker could potentially exploit this vulnerability to gain read access to a setuid binary that would otherwise be unreadable. Although unconfirmed, it may also be possible for an attacker to write code to a target executable, making it theoretically possible to execute arbitrary code with elevated privileges. |
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