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.
Metrics
CVSS 3.0 4.3/10
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1feIssue Tracking, Patch, Third Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/75Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/05/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94354
- https://access.redhat.com/errata/RHSA-2017:1297
- https://access.redhat.com/errata/RHSA-2017:1298
- https://access.redhat.com/errata/RHSA-2017:1308
- https://bugzilla.redhat.com/show_bug.cgi?id=1395190Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/3a4b77cd47bb837b8557595ec7425f281f2ca1feIssue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
- https://usn.ubuntu.com/3754-1/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1feIssue Tracking, Patch, Third Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/75Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/05/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94354
- https://access.redhat.com/errata/RHSA-2017:1297
- https://access.redhat.com/errata/RHSA-2017:1298
- https://access.redhat.com/errata/RHSA-2017:1308
- https://bugzilla.redhat.com/show_bug.cgi?id=1395190Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/3a4b77cd47bb837b8557595ec7425f281f2ca1feIssue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html
- https://usn.ubuntu.com/3754-1/
Timeline
- Published
- Feb 6, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified