6.5

CVE-2019-14871: newlib_project newlib NULL Pointer Dereference

CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2019-14871DEBIAN-CVE-2019-14871
Published 18-03-2020Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-14871 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in newlib_project newlib. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (CVE.org)
EPSS score
1.02%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 18-03-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

7 scores · 4 sources · 3 versions

EPSS trend

Probability

1.02%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

+0.01 pp

From 1.01% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (census-labs.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • newlib< 3.3.0-1
  • picolibc< 1.4.3-1
Newlib_project1 product
Red hat1 product
  • newliball newlib versions prior to 3.3.0
Ubuntu1 product
  • newlibAll versions (No fix recorded)

4 vendors · 5 products

References

4 links