CVE-2019-2821: Medium severity Oracle JDK vulnerability
A flaw was found in the way the JSSE component of OpenJDK handled certificate status / OCSP stapling message during TLS handshake. A remote attacker could possibly use this flaw to gain access to certain sensitive information by manipulating TLS handshake messages.
Other sources
Vulnerability in the Java SE component of Oracle Java SE (subcomponent: JSSE). Supported versions that are affected are Java SE: 11.0.3 and 12.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Java SE. Successful attacks require human interaction from a person other than the attacker. 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 does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.0 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/openjdk-11to a version that resolves this vulnerability.Fixed in 11.0.24+8-2~deb11u1Fixed in 11.0.32+9-2~deb11u1Fixed in 11.0.32.1+1-1
Event History
Frequently Asked Questions
What is the severity of CVE-2019-2821?
The severity of CVE-2019-2821 is medium.
How can an unauthenticated attacker exploit CVE-2019-2821?
An unauthenticated attacker with network access via TLS can compromise Java SE.
Which versions of Java SE are affected by CVE-2019-2821?
Java SE versions 11.0.3 and 12.0.1 are affected by CVE-2019-2821.
How can I fix CVE-2019-2821 in Debian?
To fix CVE-2019-2821 in Debian, update to openjdk-11 version 11.0.16+8-1~deb10u1 or newer.
Where can I find more information about CVE-2019-2821?
You can find more information about CVE-2019-2821 from the following sources: - Oracle Security Advisory: http://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html - Ubuntu Security Notice: https://usn.ubuntu.com/4083-1/ - openSUSE Security Announcement: http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00038.html