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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1232-1 | linux security update |
Debian DSA |
DSA-4073-1 | linux security update |
Debian DSA |
DSA-4082-1 | linux security update |
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 |
USN-3617-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-3617-2 | Linux (HWE) vulnerabilities |
Ubuntu USN |
USN-3617-3 | Linux kernel (Raspberry Pi 2) vulnerabilities |
Ubuntu USN |
USN-3619-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-3619-2 | Linux kernel (Xenial HWE) vulnerabilities |
Ubuntu USN |
USN-3620-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-3620-2 | Linux kernel (Trusty HWE) vulnerabilities |
Ubuntu USN |
USN-3632-1 | Linux kernel (Azure) vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T20:59:17.864Z
Reserved: 2017-12-20T00:00:00.000Z
Link: CVE-2017-17807
No data.
Status : Modified
Published: 2017-12-20T23:29:00.423
Modified: 2026-05-13T00:24:29.033
Link: CVE-2017-17807
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
Debian DSA
EUVD
Ubuntu USN