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    CVE-2019-14871

    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).

    Published:Mar 18, 2020
    Last Modified:Nov 21, 2024
    EPS:Mar 18, 2020
    EPSS Score:0.00465
    CVSS Score:6.5

    Affected Products

    Vendor
    Newlib Project
    Product
    Newlib

    Exploits

    https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2024-30949 (CVSS 9.8) — An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gett…
    CVE-2021-3420 (CVSS 9.8) — A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation f…
    CVE-2019-14876 (CVSS 6.5) — In the __lshift function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec…
    CVE-2019-14875 (CVSS 6.5) — In the __multiply function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mpr…
    CVE-2019-14874 (CVSS 6.5) — In the __i2b function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c)…
    CVE-2019-14878 (CVSS 6.5) — In the __d2b function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c)…
    CVE-2019-14877 (CVSS 6.5) — In the __mdiff function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.…
    CVE-2019-14873 (CVSS 6.5) — In the __multadd function of the newlib libc library, prior to versions 3.3.0 (see newlib/libc/stdlib/mprec.c)…
    CVE-2019-14872 (CVSS 6.5) — The _dtoa_r function of the newlib libc library, prior to version 3.3.0, performs multiple memory allocations …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High