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TI-2021-03555 Aliases CVE-2021-20264GHSA-gx4p-prhw-c28v

Incorrect permission assignment in containers/openjdk

Priority LOW 34CWE-266Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-266.

Summary

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 threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Why it matters now

EPSS 0.00271 19th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—containers/openjdkopenjdk 1.8—No fix listedCNA
  • containers/openjdk Vendor— Affected openjdk 1.8 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:oracle:openjdk:1.8.0:*:*:*:*:*:*:*1.8.0VulnerableOracle
cpe:2.3:a:oracle:openjdk:11:*:*:*:*:*:*:*11VulnerableOracle
  • cpe:2.3:a:oracle:openjdk:1.8.0:*:*:*:*:*:*:* Versions 1.8.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:openjdk:11:*:*:*:*:*:*:* Versions 11 Vulnerable ·Oracle

Remediation

Red Hat 2 advisories

  • RHSA-2021:0945 Released 2021-03-19 · Red Hat rating Moderate
    Red Hat Build of OpenJDK 11 (container images) release and security update
    • Red Hat Build of OpenJDK
  • RHSA-2021:0946 Released 2021-03-19 · Red Hat rating Moderate
    Red Hat Build of OpenJDK 1.8 (container images) release and security update
    • Red Hat Build of OpenJDK

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Build of OpenJDK Fixed RHSA-2021:0946

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20264
  2. 2026-10-03 Alias added: GHSA-gx4p-prhw-c28v

References

Advisory 1

  • TI-2022-15084 Apache Xalan Java XSLT library is vulnerable to an integer truncation issue when processing malicious XSLT stylesheets CVSS 3.1HIGH 7.5
  • TI-2013-00358 Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java… KEVCVSS 3.1LOW 3.7
  • TI-2021-14286 Uncontrolled resource consumption in Oracle Java SE JDK and JRE CVSS 3.1MEDIUM 5.3
  • TI-2021-14283 Protection mechanism failure in Oracle Java SE JDK and JRE CVSS 3.1MEDIUM 5.3
  • TI-2021-02476 Out-of-bounds write in libxml2 CVSS 3.1HIGH 8.6
  • TI-2022-05732 Deserialization of untrusted data in Oracle Java SE JDK and JRE CVSS 3.1MEDIUM 5.3
See all 97 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences