CVE-2019-14871 — MEDIUM (6.5)

Q: How severe is CVE-2019-14871?

CVE-2019-14871 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2019-14871?

Check the references section above for vendor advisories and patch information. Affected products include: Newlib Project Newlib.

Vulnerability 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 Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Newlib Project	Newlib	< 3.3.0

Related Weaknesses (CWE)

CWE-476

References

https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerExploitThird Party Advisory
https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerExploitThird Party Advisory

FAQ

What is CVE-2019-14871?

CVE-2019-14871 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 al...

How severe is CVE-2019-14871?

CVE-2019-14871 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-14871?

Check the references section above for vendor advisories and patch information. Affected products include: Newlib Project Newlib.