This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-45105 →

DEBIAN-CVE-2021-45105

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 lookup...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 apache-log4j2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.17.0-1"}]}]

Debian:13 apache-log4j2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.17.0-1"}]}]

Debian:14 apache-log4j2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.17.0-1"}]}]

References

advisory security-tracker.debian.org