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CVE-2021-45105

Apache Log4j2 does not always protect from infinite recursion in lookup evaluation

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.

CVSS 3.1 · 5.9 Medium EPSS 100.0% KEV · Not listed
Vendors
Apache Debian Netapp and 3 more
Products
Log4j Debian Linux Cloud Manager and 128 more
CVE-2021-42340

DoS via memory leak with WebSocket connections

The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.

CVSS 3.1 · 7.5 High EPSS 11.8% KEV · Not listed
Vendors
Apache Debian Netapp and 2 more
Products
Tomcat Debian Linux Hci and 19 more
CVE-2020-1945

ant: insecure temporary file vulnerability

Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.

CVSS 3.1 · 6.3 Medium EPSS 1.8% KEV · Not listed
Vendors
Apache Canonical Fedoraproject and 3 more
Products
Ant Ubuntu Linux Fedora and 51 more