Most recent entries from all https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 17:10:00 +0000 CVE-2021-45105 — Apache Log4j2 does not always protect from infinite recursion in lookup evaluation https://vulnerability.circl.lu/vuln/cve-2021-45105 <p><strong>Affected:</strong> Apache Software Foundation Apache Log4j2</p> <p>Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.</p> <p><strong>Affected:</strong> Apache Software Foundation Apache Log4j2</p> <p>Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.</p> https://vulnerability.circl.lu/vuln/cve-2021-45105 USN-5203-1 — apache-log4j2 vulnerability https://vulnerability.circl.lu/vuln/usn-5203-1 <p><strong>Affected:</strong> Ubuntu:20.04:LTS: apache-log4j2</p> <p>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. Please see the following link for more information: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell</p> <p><strong>Affected:</strong> Ubuntu:20.04:LTS: apache-log4j2</p> <p>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. Please see the following link for more information: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell</p> https://vulnerability.circl.lu/vuln/usn-5203-1