Denial of Service (DoS) Affecting torvalds/linux package, versions [,3.15.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.44% (35th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006302
  • published26 Jan 2022
  • disclosed23 Jun 2014
  • creditUnknown

Introduced: 23 Jun 2014

CVE-2014-4171  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.15.2 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

CVSS Base Scores

version 3.1