Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.14.6 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6eIssue TrackingPatch
- http://www.securityfocus.com/bid/102301Third Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410Issue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html
- https://usn.ubuntu.com/3617-1/
- https://usn.ubuntu.com/3617-2/
- https://usn.ubuntu.com/3617-3/
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3620-1/
- https://usn.ubuntu.com/3620-2/
- https://usn.ubuntu.com/3632-1/
- https://www.debian.org/security/2017/dsa-4073Third Party Advisory
- https://www.debian.org/security/2018/dsa-4082
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.6Issue TrackingMailing ListRelease Notes
FAQ
What is CVE-2017-17807?
CVE-2017-17807 is a vulnerability with a CVSS score of 3.3 (LOW). 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...
How severe is CVE-2017-17807?
CVE-2017-17807 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-17807?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.