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Missing Authorization Affecting kernel-uek-devel package, versions <0:4.1.12-124.26.1.el7uek

Severity

 Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2543278
  • published10 Apr 2022
  • disclosed20 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 20 Dec 2017

CVE-2017-17807  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.26.1.el7uek or higher.
This issue was patched in ELSA-2019-4575.

NVD Description

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

The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.

References