Information Exposure Affecting torvalds/linux package, versions [,2.6.23)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.13% (34th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005407
  • published26 Jan 2022
  • disclosed26 Sept 2007
  • creditUnknown

Introduced: 26 Sep 2007

CVE-2007-4571  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.23 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. 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.

CVSS Base Scores

version 3.1