CVE-2019-14874 — MEDIUM (6.5)

Q: How severe is CVE-2019-14874?

CVE-2019-14874 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-2019-14874?

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

Vulnerability Description

In the __i2b function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access of _ x[0] will trigger a null pointer dereference bug in case of a memory allocation failure.

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-2019-14874?

CVE-2019-14874 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In the __i2b function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the...

How severe is CVE-2019-14874?

CVE-2019-14874 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-2019-14874?

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