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Vulnerability · Published Sep 15, 2020 · Assigned by redhat

CVE-2020-14314

Medium 5.5

In plain English

A medium-severity out-of-bounds read in kernel from Linux Kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.4%top 68.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-tools-libs-devel4.18.0-305.el8ALSA-2021:1578
Debian:12linux5.8.7-1DEBIAN-CVE-2020-14314
Debian:13linux5.8.7-1DEBIAN-CVE-2020-14314
Debian:14linux5.8.7-1DEBIAN-CVE-2020-14314
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-14314
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-14314
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-14314

Affected products (as reported)

VendorProductVersions
Linux Kernel kernel before 5.9-rc2

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References