Buffer overflow vulnerability in log_prefix function in Linux kernel 3.x before 3.4.33

CVE-2013-1772 · MEDIUM Severity

AV:L/AC:H/AU:N/C:N/I:N/A:C

The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove a prefix string from a syslog header, which allows local users to cause a denial of service (buffer overflow and system crash) by leveraging /dev/kmsg write access and triggering a call_console_drivers function call.

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