What is CVE-2021-20264?

CVE-2021-20264 is a high-severity vulnerability in Oracle Openjdk, classified under Incorrect Privilege Assignment. CVSS score: 7.8/10. Published 2021-10-06.

How severe is CVE-2021-20264?

High severity. CVSS v3 base score is 7.8 out of 10.

Privilege escalation in Oracle Openjdk

CVE-2021-20264

An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest th…

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Oracle Openjdk — versions 1.8.0, 11
N/a Containers/openjdk — versions openjdk 1.8

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment
CWE-732 — Incorrect Permission Assignment for Critical Resource

References

secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-20264?: CVE-2021-20264 is a high-severity vulnerability in Oracle Openjdk, classified under Incorrect Privilege Assignment. CVSS score: 7.8/10. Published 2021-10-06.
How severe is CVE-2021-20264?: High severity. CVSS v3 base score is 7.8 out of 10.