CVSS 3.0
3.3 lowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NCVE-2017-17807
Low (3.3) in linux linux kernel. EPSS 0.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b
- http://www.securityfocus.com/bid/102301
- https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b
- https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html
- https://usn.ubuntu.com/3617-1/