Packages
- apache-log4j2 - Apache Log4j - Logging Framework for Java
Details
Chen Zhaojun discovered that Apache Log4j 2 allows remote attackers to run
programs via a special crafted input. An attacker could use this vulnerability
to cause a denial of service or possibly execute arbitrary code.
Please see the following link for more information:
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell
Chen Zhaojun discovered that Apache Log4j 2 allows remote attackers to run
programs via a special crafted input. An attacker could use this vulnerability
to cause a denial of service or possibly execute arbitrary code.
Please see the following link for more information:
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Ubuntu Release | Package Version | ||
---|---|---|---|
21.10 impish | liblog4j2-java – 2.15.0-0.21.10.1 | ||
21.04 hirsute | liblog4j2-java – 2.15.0-0.21.04.1 | ||
20.04 focal | liblog4j2-java – 2.15.0-0.20.04.1 | ||
18.04 bionic | liblog4j2-java – 2.10.0-2ubuntu0.1 |
Reduce your security exposure
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.