CVE-2019-14871 — NULL Pointer Dereference in Project Newlib

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.5%
top 35.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Newlib Project NewlibDebian NewlibDebian Picolibc+1 more
Timeline
PublishedMar 18
Latest updateMay 24

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).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/newlib< newlib 3.3.0-1 (bookworm)
▶Debiannewlib_project/newlib< 3.3.0-1+3
▶CVEListV5red_hat/newliball newlib versions prior to 3.3.0
▶debiandebian/picolibc< newlib 3.3.0-1 (bookworm)

🔴Vulnerability Details

2
GHSA
GHSA-2q4g-qm2f-cq2j: The REENT_CHECK macro (see newlib/libc/include/sys/reent↗2022-05-24
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OSV
CVE-2019-14871: The REENT_CHECK macro (see newlib/libc/include/sys/reent↗2020-03-18
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📋Vendor Advisories

1
Debian
CVE-2019-14871: newlib - The REENT_CHECK macro (see newlib/libc/include/sys/reent.h) as used by REENT_CHE...↗2019
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