drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Apache log4j
Name: |
Zwei Probleme in Apache log4j |
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ID: |
USN-5222-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 21.04, Ubuntu 21.10 |
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Datum: |
Mi, 12. Januar 2022, 12:05 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45105
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44832 |
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Applikationen: |
Log4j |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-5222-1 January 11, 2022
apache-log4j2 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10 - Ubuntu 21.04 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in Apache Log4j 2.
Software Description: - apache-log4j2: Apache Log4j - Logging Framework for Java
Details:
It was discovered that Apache Log4j 2 was vulnerable to remote code execution (RCE) attack when configured to use a JDBC Appender with a JNDI LDAP data source URI. A remote attacker could possibly use this issue to cause a crash, leading to a denial of service. (CVE-2021-44832)
Hideki Okamoto and Guy Lederfein discovered that Apache Log4j 2 did not protect against infinite recursion in lookup evaluation. A remote attacker could possibly use this issue to cause Apache Log4j 2 to crash, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2021-45105)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 21.10: liblog4j2-java 2.17.1-0.21.10.1
Ubuntu 21.04: liblog4j2-java 2.17.1-0.21.04.1
Ubuntu 20.04 LTS: liblog4j2-java 2.17.1-0.20.04.1
Ubuntu 18.04 LTS: liblog4j2-java 2.12.4-0ubuntu0.1
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-5222-1 CVE-2021-44832, CVE-2021-45105
Package Information: https://launchpad.net/ubuntu/+source/apache-log4j2/2.17.1-0.21.10.1 https://launchpad.net/ubuntu/+source/apache-log4j2/2.17.1-0.21.04.1 https://launchpad.net/ubuntu/+source/apache-log4j2/2.17.1-0.20.04.1 https://launchpad.net/ubuntu/+source/apache-log4j2/2.12.4-0ubuntu0.1
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