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nvd[email protected]NVD:CVE-2021-45423
HistoryMar 13, 2023 - 6:15 p.m.

CVE-2021-45423

2023-03-1318:15:12
CWE-120
web.nvd.nist.gov
10
buffer overflow
pev 0.81
pe_exports
exports.c
dynamically allocated
stack
arbitrary code execution

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

9.8

Confidence

High

EPSS

0.003

Percentile

68.5%

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:*:*:*:*:*:*:*

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

9.8

Confidence

High

EPSS

0.003

Percentile

68.5%