Out-of-bounds Read Affecting torvalds/linux package, versions [4.7,4.13.1)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.81% (74th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004462
  • published26 Jan 2022
  • disclosed26 Jul 2018
  • creditUnknown

Introduced: 26 Jul 2018

CVE-2017-7558  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.13.1 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.

CVSS Base Scores

version 3.1