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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-12-20T23:00:00

Updated: 2024-08-05T20:59:17.864Z

Reserved: 2017-12-20T00:00:00

Link: CVE-2017-17807

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-12-20T23:29:00.423

Modified: 2019-10-03T00:03:26.223

Link: CVE-2017-17807

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-12-08T00:00:00Z

Links: CVE-2017-17807 - Bugzilla