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Weakness (CWE)

CWE-665: Improper Initialization

Class Draft Mapping discouraged

The product does not initialize or incorrectly initializes a resource.

How to prevent it (6 mitigations)
  1. Requirements

    Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.

    For example, in Java, if the programmer does not explicitly initialize a variable, then the code could produce a compile-time error (if the variable is local) or automatically initialize the variable to the default value for the variable's type. In Perl, if explicit initialization is not performed, then a default value of undef is assigned, which is interpreted as 0, false, or an equivalent value depending on the context in which the variable is accessed.

  2. Architecture and Design

    Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.

  3. Implementation

    Explicitly initialize all your variables and other data stores, either during declaration or just before the first usage.

  4. Implementation

    Pay close attention to complex conditionals that affect initialization, since some conditions might not perform the initialization.

  5. Implementation

    Avoid race conditions (CWE-362) during initialization routines.

  6. Build and Compilation

    Run or compile your product with settings that generate warnings about uninitialized variables or data.

Source: MITRE CWE-665

5 results · Clear filters · Feed

  • High 7.5
    CVE-2022-46505 Public exploit

    An issue in MatrixSSL 4.5.1-open and earlier leads to failure to securely check the SessionID field, resulting in the m…

  • Critical 9.4
    CVE-2022-46164 Public exploit EPSS 47%

    Account takeover via prototype vulnerability

    NodeBB is an open source Node.js based forum software. Due to a plain object with a prototype being used in socket.io message handling a specially crafted payload can be used to impersonate other users and takeover accounts. This vulnerability has been patche…

  • High 7.8
    CVE-2022-0847 Exploited Public exploit EPSS 93%

    A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in co…

    KEV Apr 25, 2022
  • Medium 5.5
    CVE-2020-27950 Exploited Public exploit EPSS 17%

    A memory initialization issue was addressed. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watc…

    KEV Nov 3, 2021
  • Critical 9.8
    CVE-2019-14271 Public exploit EPSS 19%

    Moby Docker cp broken with debian containers

    In Docker 19.03.x before 19.03.1 linked against the GNU C Library (aka glibc), code injection can occur when the nsswitch facility dynamically loads a library inside a chroot that contains the contents of the container.