PT-2020-9611 · Unknown · Newlib Libc

Dimitrios Glynos · Published 2020-03-19 · Updated 2020-03-24 · CVE-2019-14872

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions newlib libc library versions prior to 3.3.0

Description The issue is related to the dtoa r function in the newlib libc library, which performs multiple memory allocations without checking their return values. This could lead to a NULL pointer dereference.

Recommendations For versions prior to 3.3.0, update to version 3.3.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of the dtoa r function until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-14872

Affected Products

Newlib Libc

References · 9

• 🔥 https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib · Exploit
• https://cve.org/CVERecord?id=CVE-2019-14872 · Security Note
• https://osv.dev/vulnerability/CVE-2019-14872 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-14872 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-14872 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-14872 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-14872 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-14872 · Security Note
• https://t.me/cvenotify/1896 · Telegram Post