Description
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.openwall.com/lists/oss-security/2017/02/05/3 ↗
- http://www.securityfocus.com/bid/94354 ↗
- https://access.redhat.com/errata/RHSA-2017:1308 ↗
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html ↗
- https://github.com/torvalds/linux/commit/3a4b77cd47bb837b8557595ec7425f281f2ca1fe ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1fe ↗
- https://usn.ubuntu.com/3754-1/ ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1395190 ↗
- https://access.redhat.com/errata/RHSA-2017:1298 ↗
- http://seclists.org/fulldisclosure/2016/Nov/75 ↗
- https://access.redhat.com/errata/RHSA-2017:1297 ↗