Headline
Ubuntu Security Notice USN-6696-1
Ubuntu Security Notice 6696-1 - Yi Yang discovered that the Hotspot component of OpenJDK 8 incorrectly handled array accesses in the C1 compiler. An attacker could possibly use this issue to cause a denial of service, execute arbitrary code or bypass Java sandbox restrictions. It was discovered that the Hotspot component of OpenJDK 8 did not properly verify bytecode in certain situations. An attacker could possibly use this issue to bypass Java sandbox restrictions.
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Ubuntu Security Notice USN-6696-1
March 18, 2024
openjdk-8 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
Summary:
Several security issues were fixed in OpenJDK 8.
Software Description:
- openjdk-8: Open Source Java implementation
Details:
Yi Yang discovered that the Hotspot component of OpenJDK 8 incorrectly
handled array accesses in the C1 compiler. An attacker could possibly
use this issue to cause a denial of service, execute arbitrary code or
bypass Java sandbox restrictions. (CVE-2024-20918)
It was discovered that the Hotspot component of OpenJDK 8 did not
properly verify bytecode in certain situations. An attacker could
possibly use this issue to bypass Java sandbox restrictions.
(CVE-2024-20919)
It was discovered that the Hotspot component of OpenJDK 8 had an
optimization flaw when generating range check loop predicates. An attacker
could possibly use this issue to cause a denial of service, execute
arbitrary code or bypass Java sandbox restrictions. (CVE-2024-20921)
Valentin Eudeline discovered that OpenJDK 8 incorrectly handled certain
options in the Nashorn JavaScript subcomponent. An attacker could
possibly use this issue to execute arbitrary code. (CVE-2024-20926)
It was discovered that OpenJDK 8 could produce debug logs that contained
private keys used for digital signatures. An attacker could possibly use
this issue to obtain sensitive information. (CVE-2024-20945)
Hubert Kario discovered that the TLS implementation in OpenJDK 8 had a
timing side-channel and incorrectly handled RSA padding. A remote attacker
could possibly use this issue to recover sensitive information.
(CVE-2024-20952)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.10:
openjdk-8-jdk 8u402-ga-2ubuntu1~23.10.1
openjdk-8-jdk-headless 8u402-ga-2ubuntu1~23.10.1
openjdk-8-jre 8u402-ga-2ubuntu1~23.10.1
openjdk-8-jre-headless 8u402-ga-2ubuntu1~23.10.1
openjdk-8-jre-zero 8u402-ga-2ubuntu1~23.10.1
Ubuntu 22.04 LTS:
openjdk-8-jdk 8u402-ga-2ubuntu1~22.04
openjdk-8-jdk-headless 8u402-ga-2ubuntu1~22.04
openjdk-8-jre 8u402-ga-2ubuntu1~22.04
openjdk-8-jre-headless 8u402-ga-2ubuntu1~22.04
openjdk-8-jre-zero 8u402-ga-2ubuntu1~22.04
Ubuntu 20.04 LTS:
openjdk-8-jdk 8u402-ga-2ubuntu1~20.04
openjdk-8-jdk-headless 8u402-ga-2ubuntu1~20.04
openjdk-8-jre 8u402-ga-2ubuntu1~20.04
openjdk-8-jre-headless 8u402-ga-2ubuntu1~20.04
openjdk-8-jre-zero 8u402-ga-2ubuntu1~20.04
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
openjdk-8-jdk 8u402-ga-2ubuntu1~18.04
openjdk-8-jdk-headless 8u402-ga-2ubuntu1~18.04
openjdk-8-jre 8u402-ga-2ubuntu1~18.04
openjdk-8-jre-headless 8u402-ga-2ubuntu1~18.04
openjdk-8-jre-zero 8u402-ga-2ubuntu1~18.04
This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any Java
applications to make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6696-1
CVE-2024-20918, CVE-2024-20919, CVE-2024-20921, CVE-2024-20926,
CVE-2024-20945, CVE-2024-20952
Package Information:
https://launchpad.net/ubuntu/+source/openjdk-8/8u402-ga-2ubuntu1~23.10.1
https://launchpad.net/ubuntu/+source/openjdk-8/8u402-ga-2ubuntu1~22.04
https://launchpad.net/ubuntu/+source/openjdk-8/8u402-ga-2ubuntu1~20.04
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