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Vulnerability · Published Sep 10, 2020 · Assigned by mitre

CVE-2020-25220

High 7.8

In plain English

A high-severity security flaw in the linux-intel-iot-realtime package (Ubuntu). 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 39% of all known vulnerabilities).

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.4%top 60.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-25220
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-25220
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-25220
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-25220

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References