CVE-2021-45423

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/merces/libpe/issues/35	Exploit Vendor Advisory
https://github.com/merces/libpe/issues/35	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 06:32

Type	Values Removed	Values Added
References	~~() https://github.com/merces/libpe/issues/35 - Exploit, Vendor Advisory~~	() https://github.com/merces/libpe/issues/35 - Exploit, Vendor Advisory

24 Mar 2023, 15:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:pev_project:pev:0.81:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~(MISC) https://github.com/merces/libpe/issues/35 -~~	(MISC) https://github.com/merces/libpe/issues/35 - Exploit, Vendor Advisory
CWE		CWE-120

13 Mar 2023, 18:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-03-13 18:15

Updated : 2025-03-03 21:15

NVD link : CVE-2021-45423

Mitre link : CVE-2021-45423

CVE.ORG link : CVE-2021-45423

JSON object : View

Products Affected

pev_project

pev

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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