CVE-2021-45105

Summary:

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3) 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 and 2.12.3.

Reference Links(if available):

https://logging.apache.org/log4j/2.x/security.html

https://security.netapp.com/advisory/ntap-20211218-0001/

http://www.openwall.com/lists/oss-security/2021/12/19/1

https://www.debian.org/security/2021/dsa-5024

https://www.zerodayinitiative.com/advisories/ZDI-21-1541/

CVSS Score (if available)

v2: / MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Links to Exploits(if available)