USN-6811-1: OpenJDK 11 vulnerabilities

6 June 2024

Several security issues were fixed in OpenJDK 11.

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Details

It was discovered that the Hotspot component of OpenJDK 11 incorrectly
handled certain exceptions with specially crafted long messages. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2024-21011)

It was discovered that OpenJDK 11 incorrectly performed reverse DNS
query under certain circumstances in the Networking/HTTP client
component. An attacker could possibly use this issue to obtain sensitive
information. (CVE-2024-21012)

Vladimir Kondratyev discovered that the Hotspot component of OpenJDK 11
incorrectly handled address offset calculations in the C1 compiler. An
attacker could possibly use this issue to cause a denial of service
or execute arbitrary code. (CVE-2024-21068)

Yakov Shafranovich discovered that OpenJDK 11 did not properly manage
memory in the Pack200 archive format. An attacker could possibly use this
issue to cause a denial of service. (CVE-2024-21085)

It was discovered that the Hotspot component of OpenJDK 11 incorrectly
handled array accesses in the C2 compiler. An attacker could possibly use
this issue to cause a denial of service or execute arbitrary code.
(CVE-2024-21094)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 23.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 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

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