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CVE-2007-4571

LowPublished

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return...

Published: Sep 26, 2007
Updated: Aug 7, 2024
Assigning CNA: redhat
Evidence observed: Sep 21, 2007

Primary CVSS

2.1/ 10Low

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 53.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc.

Sources

Linux Kernel 2.6.x - ALSA snd-page-alloc Local Proc File Information DisclosureExploit
Karimo_DM · linux · Sep 21, 2007

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