CVE-2021-45423 - Vulnerability Details - OpenCVE

A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c.. The array offsets_to_Names is dynamically allocated on the stack using exp->NumberOfFunctions as its size. However, the loop uses exp->NumberOfNames to iterate over it and set its components value. Therefore, the loop code assumes that exp->NumberOfFunctions is greater than ordinal at each iteration. This can lead to arbitrary code execution.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00412.

Exploitation poc

Automatable yes

Technical Impact total

Vendors	Products
Pev Project	Pev

Configuration 1 [-]

cpe:2.3:a:pev_project:pev:0.81:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-32194	A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c.. The array offsets_to_Names is dynamically allocated on the stack using exp->NumberOfFunctions as its size. However, the loop uses exp->NumberOfNames to iterate over it and set its components value. Therefore, the loop code assumes that exp->NumberOfFunctions is greater than ordinal at each iteration. This can lead to arbitrary code execution.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/merces/libpe/issues/35

History

Tue, 04 Mar 2025 03:45:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-03-13T00:00:00.000Z

Updated: 2025-03-03T20:37:30.139Z

Reserved: 2021-12-20T00:00:00.000Z

Link: CVE-2021-45423

Vulnrichment

Updated: 2024-08-04T04:39:20.665Z

NVD

Status : Modified

Published: 2023-03-13T18:15:12.553

Modified: 2025-03-03T21:15:12.083

Link: CVE-2021-45423

Redhat

No data.

OpenCVE Enrichment

No data.

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