CVE-2020-11105 Information

Description

An issue was discovered in USC iLab cereal through 1.3.0. It employs caching of std::shared_ptr values using the raw pointer address as a unique identifier. This becomes problematic if an std::shared_ptr variable goes out of scope and is freed and a new std::shared_ptr is allocated at the same address. Serialization fidelity thereby becomes dependent upon memory layout. In short serialized std::shared_ptr variables cannot always be expected to serialize back into their original values. This can have any number of consequences depending on the context within which this manifests.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/USCiLab/cereal/issues/636

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8