What is the severity of RHSA-2021:3891?

RHSA-2021:3891 has a severity rating of important due to multiple vulnerabilities in OpenJDK affecting TLS session handling.

What vulnerabilities are addressed in RHSA-2021:3891?

RHSA-2021:3891 addresses vulnerabilities including CVE-2021-35565 which can trigger a loop in HttpsServer during TLS session closure.

How do I fix RHSA-2021:3891?

To fix RHSA-2021:3891, upgrade to the vulnerable package versions specified in the advisory, ensuring to apply the patch provided.

What software versions are affected by RHSA-2021:3891?

RHSA-2021:3891 affects various versions of the OpenJDK 11 packages provided by Red Hat, including specific builds noted in the advisory.

Is it safe to use Java with RHSA-2021:3891 vulnerability present?

It is not safe to use Java versions impacted by RHSA-2021:3891 until the recommended upgrades and patches have been applied.

Vulnerability/
RHSA-2021:3891

20/10/2021

RHSA-2021:3891: Important: java-11-openjdk security update

First published: Wed Oct 20 2021(Updated: )

The java-11-openjdk packages provide the OpenJDK 11 Java Runtime Environment and the OpenJDK 11 Java Software Development Kit.<br>Security Fix(es):<br><li> OpenJDK: Loop in HttpsServer triggered during TLS session close (JSSE, 8254967) (CVE-2021-35565)</li> <li> OpenJDK: Incorrect principal selection when using Kerberos Constrained Delegation (Libraries, 8266689) (CVE-2021-35567)</li> <li> OpenJDK: Weak ciphers preferred over stronger ones for TLS (JSSE, 8264210) (CVE-2021-35550)</li> <li> OpenJDK: Excessive memory allocation in RTFParser (Swing, 8265167) (CVE-2021-35556)</li> <li> OpenJDK: Excessive memory allocation in RTFReader (Swing, 8265580) (CVE-2021-35559)</li> <li> OpenJDK: Excessive memory allocation in HashMap and HashSet (Utility, 8266097) (CVE-2021-35561)</li> <li> OpenJDK: Certificates with end dates too far in the future can corrupt keystore (Keytool, 8266137) (CVE-2021-35564)</li> <li> OpenJDK: Unexpected exception raised during TLS handshake (JSSE, 8267729) (CVE-2021-35578)</li> <li> OpenJDK: Excessive memory allocation in BMPImageReader (ImageIO, 8267735) (CVE-2021-35586)</li> <li> OpenJDK: Non-constant comparison during TLS handshakes (JSSE, 8269618) (CVE-2021-35603)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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Reference Links

Frequently Asked Questions

What is the severity of RHSA-2021:3891?
RHSA-2021:3891 has a severity rating of important due to multiple vulnerabilities in OpenJDK affecting TLS session handling.
What vulnerabilities are addressed in RHSA-2021:3891?
RHSA-2021:3891 addresses vulnerabilities including CVE-2021-35565 which can trigger a loop in HttpsServer during TLS session closure.
How do I fix RHSA-2021:3891?
To fix RHSA-2021:3891, upgrade to the vulnerable package versions specified in the advisory, ensuring to apply the patch provided.
What software versions are affected by RHSA-2021:3891?
RHSA-2021:3891 affects various versions of the OpenJDK 11 packages provided by Red Hat, including specific builds noted in the advisory.
Is it safe to use Java with RHSA-2021:3891 vulnerability present?
It is not safe to use Java versions impacted by RHSA-2021:3891 until the recommended upgrades and patches have been applied.

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