CVE-2020-11104
NixOS vulnerability analysis and mitigation

Overview

An issue was discovered in USC iLab cereal through version 1.3.0 affecting the serialization of initialized C/C++ long double variables into BinaryArchive format. The vulnerability was assigned CVE-2020-11104 and was publicly disclosed in March 2020 (NVD).

Technical details

The vulnerability occurs when serializing the C/C++ native type long double, which stores uninitialized data into the serialized form. This is due to an inherent trait of the long double type where even an initialized variable leaves some of its raw storage uninitialized. The issue affects the BinaryOutputArchive functionality of the cereal library (GitHub Issue).

Impact

The vulnerability could potentially lead to information disclosure as uninitialized memory contents are leaked during the serialization process of long double variables. This could expose sensitive information that may have been previously stored in the memory location (GitHub Issue).

Mitigation and workarounds

The vulnerability has been addressed in various systems including Aurora MySQL versions 3.07.0, 3.06.0, 3.05.2, 3.04.2, 2.12.1, and 2.11.5 (AWS Aurora).

Additional resources


SourceThis report was generated using AI

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