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.
References
Link | Resource |
---|---|
http://www.debian.org/security/2017/dsa-3804 | Third Party Advisory |
http://www.securityfocus.com/bid/96754 | Third Party Advisory VDB Entry |
http://www.securitytracker.com/id/1037918 | Third Party Advisory VDB Entry |
https://bugzilla.kernel.org/show_bug.cgi?id=192931 | Issue Tracking Patch Vendor Advisory |
https://github.com/torvalds/linux/commit/95e91b831f87ac8e1f8ed50c14d709089b4e01b8 | Patch Third Party Advisory |
https://github.com/torvalds/linux/commit/e1d35d4dc7f089e6c9c080d556feedf9c706f0c7 | Patch Third Party Advisory |
https://usn.ubuntu.com/3583-1/ | Third Party Advisory |
https://usn.ubuntu.com/3583-2/ | Third Party Advisory |
Configurations
History
No history.
Information
Published : 2017-02-24 15:59
Updated : 2024-02-28 15:44
NVD link : CVE-2017-5669
Mitre link : CVE-2017-5669
CVE.ORG link : CVE-2017-5669
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
canonical
- ubuntu_linux
CWE