Out-of-bounds Read Affecting torvalds/linux package, versions [4.14,4.14.75)[4.15,4.15.18][4.16,4.16.18][4.17,4.17.9][4.18,4.18.13)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005664
  • published26 Jan 2022
  • disclosed17 Oct 2018
  • creditUnknown

Introduced: 17 Oct 2018

CVE-2018-18445  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.14.75, 4.18.13 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.

References

CVSS Base Scores

version 3.1