A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious, local users to disclose potentially sensitive information.
The vulnerability is caused due to an error within the "snd_mem_proc_read()" function in sound/core/memalloc.c when handling multiple reads from the "/proc/driver/snd-page-alloc" file, which can be exploited to disclose certain kernel memory.
The vulnerability is reported in versions prior to 220.127.116.11.
Solution: Update to version 18.104.22.168.
Provided and/or discovered by: Discovered by Neil Kettle (mu-b) of www.digit-labs.org and reported via iDefense Labs.
Original Advisory: Linux Kernel ChangeLog:
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Subject: Linux Kernel ALSA "snd_mem_proc_read()" Information Disclosure
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