CVE-2020-27787

A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d	Patch Third Party Advisory
https://github.com/upx/upx/issues/333	Exploit Issue Tracking Patch Third Party Advisory
https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d	Patch Third Party Advisory
https://github.com/upx/upx/issues/333	Exploit Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*

History

11 Apr 2025, 12:27

Type	Values Removed	Values Added
First Time		Upx Upx upx
CPE	cpe:2.3:a:upx_project:upx::::::::	cpe:2.3:a:upx:upx::::::::

Information

Published : 2022-08-18 19:15

Updated : 2025-04-11 12:27

NVD link : CVE-2020-27787

Mitre link : CVE-2020-27787

CVE.ORG link : CVE-2020-27787

JSON object : View

Products Affected

upx

upx

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

NVD-CWE-noinfo

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