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Ubuntu: (Multiple Advisories) (CVE-2018-18397): Linux kernel (HWE) vulnerabilities Vulnerability

  • Severity: 2
  • Published: December 12, 2018

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

SUSE: CVE-2018-18397: SUSE Linux Security Advisory Vulnerability

  • Severity: 2
  • Published: December 12, 2018

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

Huawei EulerOS: CVE-2018-18397: kernel security update Vulnerability

  • Severity: 2
  • Published: December 12, 2018

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

CentOS: (CVE-2018-18397) CESA-2019:0163: kernel Vulnerability

  • Severity: 2
  • Published: December 12, 2018

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.