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Red Hat: CVE-2017-17807: Moderate: kernel security, bug fix, and enhancement update (Multiple Advisories)

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Red Hat: CVE-2017-17807: Moderate: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
12/20/2017
Created
04/02/2020
Added
04/01/2020
Modified
03/03/2021

Description

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • 102301
  • DSA-4073
  • DSA-4082
  • CVE-2017-17807

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