CVE-2019-14871

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

The REENT_CHECK macro (see newlib/libc/include/sys/reent.h) as used by REENT_CHECK_TM, REENT_CHECK_MISC, REENT_CHECK_MP and other newlib macros in versions prior to 3.3.0, does not check for memory allocation problems when the DEBUG flag is unset (as is the case in production firmware builds).

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
Red Hat	newlib	all newlib versions prior to 3.3.0

References

https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/Exploit, Third Party Advisory
https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/Exploit, Third Party Advisory

Timeline

Published: Mar 18, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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