CVE Vulnerabilities

CVE-2019-20063

Improper Initialization

Published: Dec 29, 2019 | Modified: Jan 08, 2020
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

hdf/dataobject.c in libmysofa before 0.8 has an uninitialized use of memory, as demonstrated by mysofa2json.

Weakness

The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.

Affected Software

Name Vendor Start Version End Version
Libmysofa Symonics * 0.8 (excluding)
Libmysofa Ubuntu bionic *
Libmysofa Ubuntu disco *
Libmysofa Ubuntu eoan *
Libmysofa Ubuntu esm-apps/bionic *
Libmysofa Ubuntu trusty *
Libmysofa Ubuntu upstream *

Potential Mitigations

  • 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.

References