Description
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Kernel kernel
before 5.9-rc2affected
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1 ↗
- https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7%40redhat.com/T/#u ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314 ↗
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html ↗
- https://usn.ubuntu.com/4576-1/ ↗
- https://usn.ubuntu.com/4578-1/ ↗
- https://usn.ubuntu.com/4579-1/ ↗
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html ↗
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html ↗
- https://www.starwindsoftware.com/security/sw-20210325-0003/ ↗