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CVE-2023-21835

Publication date 18 January 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 11.0.17, 17.0.5, 19.0.1; Oracle GraalVM Enterprise Edition: 20.3.8, 21.3.4 and 22.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via DTLS to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. 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 does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

From the Ubuntu Security Team

Juraj Somorovsky, Marcel Maehren, Nurullah Erinola, and Robert Merget discovered that the DTLS implementation in the JSSE subsystem of OpenJDK did not properly restrict handshake initiation requests from clients. A remote attacker could possibly use this to cause a denial of service.

Read the notes from the security team

Status

Package Ubuntu Release Status
icedtea-web 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
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 affected
openjdk-13 22.10 kinetic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-16 22.10 kinetic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-17 23.04 lunar
Fixed 17.0.6+10-0ubuntu1
22.10 kinetic
Fixed 17.0.6+10-0ubuntu1~22.10
22.04 LTS jammy
Fixed 17.0.6+10-0ubuntu1~22.04
20.04 LTS focal
Fixed 17.0.6+10-0ubuntu1~20.04.1
18.04 LTS bionic
Fixed 17.0.6+10-0ubuntu1~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
openjdk-18 23.04 lunar Ignored
22.10 kinetic Ignored
22.04 LTS jammy Ignored
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-19 23.04 lunar
Fixed 19.0.2+7-0ubuntu4
22.10 kinetic
Fixed 19.0.2+7-0ubuntu3~22.10
22.04 LTS jammy
Fixed 19.0.2+7-0ubuntu3~22.04
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-21 23.04 lunar
Not affected
22.10 kinetic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Needs evaluation
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
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
openjdk-9 22.10 kinetic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
openjdk-lts 23.04 lunar
Fixed 11.0.18+10-0ubuntu1
22.10 kinetic
Fixed 11.0.18+10-0ubuntu1~22.10
22.04 LTS jammy
Fixed 11.0.18+10-0ubuntu1~22.04
20.04 LTS focal
Fixed 11.0.18+10-0ubuntu1~20.04.1
18.04 LTS bionic
Fixed 11.0.18+10-0ubuntu1~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

sbeattie

after applying this update, the Sun JSSE DTLS implementation will by default exchange cookies for all handshakes (new and resumed) unless the System property jdk.tls.enableDtlsResumeCookie is false. The property only affects the cookie exchange for resumption. does not affect OpenJDK 8

Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L