VULNERABILITY INTELLIGENCE

CVE-2021-45423

CVSS score9.8 CRITICAL
EPSS probability1.13%
CISA KEVNot currently listed
Published2023-03-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-120
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-120

Primary references