Description
A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a Kernel
All versions after 4.5-rc1.affected
References
- https://www.openwall.com/lists/oss-security/2020/06/04/4 ↗
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5bfea2d9b17f1034a68147a8b03b9789af5700f9 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1842525 ↗
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html ↗
- https://www.debian.org/security/2020/dsa-4698 ↗
- https://www.debian.org/security/2020/dsa-4699 ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IEM47BXZJLODRH5YNNZSAQ2NVM63MYMC/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html ↗
- https://security.netapp.com/advisory/ntap-20200702-0004/ ↗
- https://usn.ubuntu.com/4439-1/ ↗
- https://usn.ubuntu.com/4426-1/ ↗
- https://usn.ubuntu.com/4440-1/ ↗
- https://usn.ubuntu.com/4483-1/ ↗