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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-1232-1 linux security update
Debian DSA Debian DSA DSA-4073-1 linux security update
Debian DSA Debian DSA DSA-4082-1 linux security update
EUVD EUVD EUVD-2017-8958 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.
Ubuntu USN Ubuntu USN USN-3617-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3617-2 Linux (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3617-3 Linux kernel (Raspberry Pi 2) vulnerabilities
Ubuntu USN Ubuntu USN USN-3619-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3619-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3620-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3620-2 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3632-1 Linux kernel (Azure) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T20:59:17.864Z

Reserved: 2017-12-20T00:00:00

Link: CVE-2017-17807

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-12-20T23:29:00.423

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-17807

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-12-08T00:00:00Z

Links: CVE-2017-17807 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses