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Missing Authorization Affecting kernel-devel package, versions <0:3.10.0-1127.el7

Severity

 Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELDEVEL-2152491
  • published26 Jul 2021
  • disclosed8 Dec 2017
Report a new vulnerability Found a mistake?

Introduced: 8 Dec 2017

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

How to fix?

Upgrade Centos:7 kernel-devel to version 0:3.10.0-1127.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by Centos. See How to fix? for Centos: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