Vulnerabilities > CVE-2021-43315 - Out-of-bounds Write vulnerability in UPX

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

upx

CWE-787

NVD

Published: 2023-03-24

Updated: 2025-04-11

Summary

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5349

Vulnerable Configurations

Part	Description	Count
Application	Upx UPX UPX - UPX UPX 1.10 UPX UPX 1.11 UPX UPX 1.90 UPX UPX 1.91 UPX UPX 1.92 UPX UPX 1.93 UPX UPX 1.94 UPX UPX 1.95 UPX UPX 1.96 UPX UPX 2.00 UPX UPX 2.01 UPX UPX 2.90 UPX UPX 2.91 UPX UPX 2.92 UPX UPX 2.93 UPX UPX 3.00 UPX UPX 3.01 UPX UPX 3.02 UPX UPX 3.03 UPX UPX 3.04 UPX UPX 3.05 UPX UPX 3.06 UPX UPX 3.07 UPX UPX 3.08 UPX UPX 3.09 UPX UPX 3.91 UPX UPX 3.92 UPX UPX 3.93 UPX UPX 3.94 UPX UPX 3.95 UPX UPX 3.96	32

Common Weakness Enumeration (CWE)

CWE-787 - Out-of-bounds Write

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References