Information Exposure Affecting torvalds/linux package, versions [,4.19.3)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.09% (28th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006353
  • published26 Jan 2022
  • disclosed4 Dec 2018
  • creditUnknown

Introduced: 4 Dec 2018

CVE-2018-19854  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.19.3 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure. An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a CVE-2013-2547 regression but with easier exploitability because the attacker does not need a capability (however, the system must have the CONFIG_CRYPTO_USER kconfig option).

CVSS Base Scores

version 3.1