CVE-2021-35567

Publication date 20 October 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.8 · Medium

Score breakdown

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 8u301, 11.0.12, 17; Oracle GraalVM Enterprise Edition: 20.3.3 and 21.2.0. Easily exploitable vulnerability allows low privileged attacker with network access via Kerberos to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Oracle GraalVM Enterprise Edition, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 6.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N).

From the Ubuntu Security Team

Chuck Hunley discovered that the Kerberos implementation in OpenJDK did not correctly report subject principals when using Kerberos Constrained Delegation. An attacker could possibly use this to cause incorrect Kerberos tickets to be used.

Status

Package Ubuntu Release Status
icedtea-web 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
openjdk-12 23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-13 23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.04 LTS focal Ignored superseded by openjdk-17
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-15 23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Ignored end of life
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-8 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Fixed 8u312-b07-0ubuntu1~21.10
21.04 hirsute
Fixed 8u312-b07-0ubuntu1~21.04
20.04 LTS focal
Fixed 8u312-b07-0ubuntu1~20.04
18.04 LTS bionic
Fixed 8u312-b07-0ubuntu1~18.04
16.04 LTS xenial
14.04 LTS trusty Not in release
openjdk-9 23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored no longer supported by upstream
14.04 LTS trusty Not in release
openjdk-lts 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish
Fixed 11.0.13+8-0ubuntu1~21.10
21.04 hirsute
Fixed 11.0.13+8-0ubuntu1~21.04
20.04 LTS focal
Fixed 11.0.13+8-0ubuntu1~20.04
18.04 LTS bionic
Fixed 11.0.13+8-0ubuntu1~18.04
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openjdk-8
openjdk-lts

Severity score breakdown

Parameter Value
Base score 6.8 · Medium
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-5202-1
    • OpenJDK vulnerabilities
    • 17 December 2021

Other references