CVE-2020-14314
First published: Fri Jun 05 2020(Updated: )
A memory out of bound read flaw was found in the Linux kernel's ext3/ext4 file system, in the way it accesses directory with broken indexing. This flaw allows a local user to crash the system if such directory exists.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1160.11.1.rt56.1145.el7 | 0:3.10.0-1160.11.1.rt56.1145.el7 |
| redhat/kernel | <0:3.10.0-1160.11.1.el7 | 0:3.10.0-1160.11.1.el7 |
| redhat/kernel-rt | <0:4.18.0-305.rt7.72.el8 | 0:4.18.0-305.rt7.72.el8 |
| redhat/kernel | <0:4.18.0-305.el8 | 0:4.18.0-305.el8 |
| redhat/Linux kernel version | <5.9 | 5.9 |
| Linux Linux kernel | <=5.8.9 | |
| Linux Linux kernel | =5.9.0-rc1 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build12533 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build12658 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build12859 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build13170 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build13586 | |
| Starwindsoftware Starwind Virtual San Vsphere | =v8-build13861 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
Remedy
If any directories of the partition (or image) broken, the command "e2fsck -Df .../partition-name" fixes it.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-14314 https://nvd.nist.gov/vuln/detail/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://bugzilla.redhat.com/show_bug.cgi?id=1853922
- https://access.redhat.com/errata/RHSA-2020:5441
- https://access.redhat.com/errata/RHSA-2020:5437
- https://access.redhat.com/errata/RHSA-2021:1739
- https://access.redhat.com/errata/RHSA-2021:1578
- https://access.redhat.com/security/cve/cve-2020-14314
- https://bugzilla.redhat.com/show_bug.cgi?id=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://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/
- https://launchpad.net/bugs/cve/CVE-2020-14314
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1854089
- https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7%40redhat.com/T/#u
- https://git.kernel.org/linus/5872331b3d91820e14716632ebb56b1399b34fe1
- https://security-tracker.debian.org/tracker/CVE-2020-14314
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14314
- https://nvd.nist.gov/vuln/detail/CVE-2020-14314
- https://ubuntu.com/security/CVE-2020-14314
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/severity
- agent/weakness
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-14314
- agent/software-canonical-lookup
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- agent/tags
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/event
- collector/nvd-cve
- source/NVD
- agent/last-modified-date
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.8.9
- version/linux linux kernel/5.9.0-rc1
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/20.04
- vendor/starwindsoftware
- canonical/starwindsoftware starwind virtual san vsphere
- version/starwindsoftware starwind virtual san vsphere/v8-build12533
- version/starwindsoftware starwind virtual san vsphere/v8-build12658
- version/starwindsoftware starwind virtual san vsphere/v8-build12859
- version/starwindsoftware starwind virtual san vsphere/v8-build13170
- version/starwindsoftware starwind virtual san vsphere/v8-build13586
- version/starwindsoftware starwind virtual san vsphere/v8-build13861
- package-manager/debian