Executive Summary

This vulnerability in iccDEV involves an out-of-bounds read and an integer underflow in the function CIccCalculatorFunc::SequenceNeedTempReset. Specifically, unsafe subtraction operations on indices or offsets in sequences of operations can cause integer underflow, leading to invalid memory access or logic errors. The issue arises when calculated indices exceed the number of operations, and without proper bounds checking, this results in reading beyond buffer limits or wraparound of integer values. The vulnerability was fixed by adding explicit boundary checks before performing these operations to prevent underflow and out-of-bounds access. [1, 2]

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Impact Analysis

This vulnerability can lead to reading memory outside of intended boundaries and integer underflow, which may cause application crashes or denial of service, impacting availability. The CVSS score indicates a high impact on availability, with low confidentiality impact and no integrity impact. An attacker with local access and requiring user interaction could exploit this to disrupt the normal functioning of applications using iccDEV, potentially causing them to crash or behave unpredictably. [2]

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Mitigation Strategies

The immediate step to mitigate this vulnerability is to upgrade the iccDEV library to version 2.3.1.2 or later, where the issue has been fixed. There are no known workarounds, so applying the patch or updating to the fixed version is necessary to prevent exploitation. [2]

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