CVE-2019-2745: Medium severity Oracle JDK vulnerability
The Elliptic Curve (EC) cryptography in the Security component of OpenJDK was modernized to use formulas that are more efficient, easier to implement, and offer greater resiliency against side-channel attacks (timing or cache).
For more detailed information, refer to upstream bug:
https://bugs.openjdk.java.net/browse/JDK-8208698
Upstream commit:
http://hg.openjdk.java.net/jdk/jdk/rev/752e57845ad2
Other sources
Vulnerability in the Java SE component of Oracle Java SE (subcomponent: Security). Supported versions that are affected are Java SE: 7u221, 8u212 and 11.0.3. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Java SE executes to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), 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 3.0 Base Score 5.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
— Ubuntu
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
alpine/openjdk11to a version that resolves this vulnerability.Fixed in 11.0.4_p11-r0 - Upgrade
Upgrade
alpine/openjdk7to a version that resolves this vulnerability.Fixed in 7.281.2.6.24-r0 - Upgrade
Upgrade
alpine/openjdk7to a version that resolves this vulnerability.Fixed in 7.271.2.6.23-r0 - Upgrade
Upgrade
alpine/openjdk8to a version that resolves this vulnerability.Fixed in 8.222.10-r0 - Upgrade
Upgrade
debian/openjdk-11to a version that resolves this vulnerability.Fixed in 11.0.33+9-1 - Upgrade
Upgrade
debian/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-ga-1
Event History
Frequently Asked Questions
What is the severity of CVE-2019-2745?
CVE-2019-2745 has a severity of medium.
Which versions of Java SE are affected by CVE-2019-2745?
Java SE versions 7u221, 8u212, and 11.0.3 are affected by CVE-2019-2745.
How can an unauthenticated attacker exploit CVE-2019-2745?
CVE-2019-2745 allows an unauthenticated attacker with logon to the infrastructure where Java SE executes to compromise Java.
What is the remedy for CVE-2019-2745 in openjdk-11 package (Debian)?
The recommended remedy for CVE-2019-2745 in the openjdk-11 package (Debian) is to update to version 11.0.16+8-1~deb10u1 or higher.
How can I protect my system from CVE-2019-2745?
To protect your system from CVE-2019-2745, update your Java SE installation to a version that is not affected by the vulnerability.