Access Restriction Bypass Affecting torvalds/linux package, versions [,3.19.3)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004818
  • published26 Jan 2022
  • disclosed2 May 2016
  • creditUnknown

Introduced: 2 May 2016

CVE-2015-2686  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.19.3 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsystem that uses the copy_from_iter function in the iov_iter interface, as demonstrated by the Bluetooth subsystem.

References

CVSS Scores

version 3.1