Information Exposure Affecting torvalds/linux package, versions [,4.6.1)


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
0.39% (59th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006616
  • published26 Jan 2022
  • disclosed23 May 2016
  • creditUnknown

Introduced: 23 May 2016

CVE-2016-4578  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.6.1 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.

CVSS Base Scores

version 3.1