CVE-2019-14871
MEDIUMnewlib < 3.3.0 - Null Pointer Dereference via REENT_CHECK Macro
Title source: llmDescription
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).
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/
Scores
CVSS v3
6.5
EPSS
0.0101
EPSS Percentile
58.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (1)
newlib_project/newlib
< 3.3.0
Published
Mar 18, 2020
Tracked Since
Feb 18, 2026