The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context.
                
            Metrics
Affected Vendors & Products
Advisories
    | Source | ID | Title | 
|---|---|---|
|  Debian DLA | DLA-849-1 | linux security update | 
|  Debian DSA | DSA-3804-1 | linux security update | 
|  EUVD | EUVD-2017-14746 | The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context. | 
|  Ubuntu USN | USN-3265-1 | Linux kernel vulnerabilities | 
|  Ubuntu USN | USN-3265-2 | Linux kernel (Xenial HWE) vulnerabilities | 
|  Ubuntu USN | USN-3361-1 | Linux kernel (HWE) vulnerabilities | 
|  Ubuntu USN | USN-3583-1 | Linux kernel vulnerabilities | 
|  Ubuntu USN | USN-3583-2 | Linux kernel (Trusty HWE) vulnerabilities | 
Fixes
    Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
        History
                    No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T15:11:47.757Z
Reserved: 2017-01-31T00:00:00
Link: CVE-2017-5669
No data.
Status : Deferred
Published: 2017-02-24T15:59:00.150
Modified: 2025-04-20T01:37:25.860
Link: CVE-2017-5669
 OpenCVE Enrichment
                        OpenCVE Enrichment
                    No data.