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Vulnerability · Published May 4, 2020 · Assigned by mitre

CVE-2020-12114

Medium 4.7

In plain English

A medium-severity security flaw in the kernel-tools-libs-devel package (AlmaLinux). 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 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.7Medium
Exploit odds (30 days)0.4%top 61.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before 4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a denial of service (panic) by corrupting a mountpoint reference counter.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8kernel-tools-libs-devel4.18.0-305.el8ALSA-2021:1578
Debian:12linux5.3.7-1DEBIAN-CVE-2020-12114
Debian:13linux5.3.7-1DEBIAN-CVE-2020-12114
Debian:14linux5.3.7-1DEBIAN-CVE-2020-12114
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-12114
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-12114
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-12114
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-12114

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References