Out-of-bounds Read Affecting kernel-modules package, versions <0:4.18.0-305.el8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELMODULES-4029728
- published 26 Jul 2021
- disclosed 5 Jun 2020
Introduced: 5 Jun 2020
CVE-2020-14314 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-modules to version 0:4.18.0-305.el8 or higher.
This issue was patched in RHSA-2021:1578.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-modules package and not the kernel-modules package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14314
- https://access.redhat.com/security/cve/CVE-2020-14314
- 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@redhat.com/T/#u
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://access.redhat.com/errata/RHSA-2021:1578
- https://usn.ubuntu.com/4576-1/
- https://usn.ubuntu.com/4578-1/
- https://usn.ubuntu.com/4579-1/
- https://www.starwindsoftware.com/security/sw-20210325-0003/
- https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7%40redhat.com/T/#u