CVE-2023-21967

Description

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: 8u361, 8u361-perf, 11.0.18, 17.0.6, 20; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete 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 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 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

How to fix CVE-2023-21967

To remediate CVE-2023-21967, upgrade the affected package to a fixed version below.

• —upgrade to 1.8.0 or later
• —upgrade to 1.8.0 or later
• —upgrade to 1.8.0 or later
• —upgrade to 11.0.20+8-1~deb11u1 or later
• —upgrade to 17.0.7+7-1~deb11u1 or later

Is CVE-2023-21967 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

• from 0, < 1.8.0, >= 1.9.0, < 8.0.371, >= 9.0.0, < 11.0.19, >= 12.0.0, < 17.0.7, >= 18.0.0, < 20.0.1
• from 0, < 1.8.0, >= 1.9.0, < 8.0.371, >= 9.0.0, < 11.0.19, >= 12.0.0, < 17.0.7, >= 18.0.0, < 20.0.1
• from 0, < 1.8.0, >= 1.9.0, < 8.0.371, >= 9.0.0, < 11.0.19, >= 12.0.0, < 17.0.7, >= 18.0.0, < 20.0.1
• from 0, < 11.0.20+8-1~deb11u1
• from 0, < 17.0.7+7-1~deb11u1

CVSS scores

References (10)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2023-21967
• WEBlists.debian.org/debian-lts-announce/2023/09/msg00018.html
• WEBnvd.nist.gov/vuln/detail/CVE-2023-21967
• WEBopenjdk.org/groups/vulnerability/advisories/2023-04-18