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MitreCVE-2021-45423

HistoryMar 13, 2023 - 6:15 p.m.

CVE-2021-45423

2023-03-1318:15:12

CWE-120

mitre

web.nvd.nist.gov

cve-2021-45423

buffer overflow

pev 0.81

arbitrary code execution

nvd

security

exploitation

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.7

Confidence

High

EPSS

0.003

Percentile

68.5%

JSON

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.

Affected configurations

Nvd

Node

pev_projectpevMatch0.81

VendorProductVersionCPE
pev_projectpev0.81cpe:2.3:a:pev_project:pev:0.81:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
pev_project	pev	0.81	cpe:2.3:a:pev_project:pev:0.81:::::::*

References

github.com/merces/libpe/issues/35

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.7

Confidence

High

EPSS

0.003

Percentile

68.5%

JSON

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