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Information Exposure Affecting perf package, versions <0:4.14.35-1902.302.2.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-ORACLE7-PERF-2574857
  • published10 Apr 2022
  • disclosed4 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 4 Dec 2018

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

How to fix?

Upgrade Oracle:7 perf to version 0:4.14.35-1902.302.2.el7uek or higher.
This issue was patched in ELSA-2020-5676.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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).