VULNERABILITY INTELLIGENCE

CVE-2017-17807

CVSS score3.3 LOW
EPSS probability0.44%
CISA KEVNot currently listed
Published2017-12-20
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

  • CWE-862: Missing Authorization

Primary references