Vulnerability Details : CVE-2017-17807

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.
Published 2017-12-20 23:29:00
Updated 2019-10-03 00:03:26
Source MITRE
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2017-17807

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-17807

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
 LOW AV:L/AC:L/Au:N/C:N/I:P/A:N
3.9
2.9
 NIST
3.3
 LOW CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
1.8
1.4
 NIST

CWE ids for CVE-2017-17807

  • The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-17807

Products affected by CVE-2017-17807

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