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CVE-2017-17807 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b Issue Tracking  Patch 
http://www.securityfocus.com/bid/102301 Third Party Advisory  VDB Entry 
https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b Issue Tracking  Patch 
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-4073 Third Party Advisory 
https://www.debian.org/security/2018/dsa-4082
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.6 Issue Tracking  Mailing List  Release Notes 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization cwe source acceptance level NIST  

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-17807
NVD Published Date:
12/20/2017
NVD Last Modified:
10/02/2019
Source:
MITRE