CVE-2020-29573

A stack buffer overflow flaw was found in glibc in the way the printf family of functions processed an 80-bit long double with a non-canonical bit pattern. This flaw allows an attacker who can control the arguments of these functions with the non-standard long double pattern to trigger an overflow and cause an application crash. The highest threat from this vulnerability is to system availability.

This is essentially a crash which can only be triggered by a non-standard argument passed as a long double input to a member of printf family of functions. The application has to be written in this way to allow this issue to be triggered. The maximum impact is an application crash.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.