Debian: CVE-2017-17807: linux -- security update
|2||(AV:L/AC:L/Au:N/C:N/I:P/A:N)||December 20, 2017||December 24, 2017||January 17, 2018|
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.
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