CVE-2019-20021 - Vulnerability Details - OpenCVE

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Fedoraproject	Fedora
Upx	Upx

Configuration 1 [-]

cpe:2.3:a:upx:upx:3.95:*:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:fedoraproject:fedora:30:::::::*
	cpe:2.3:o:fedoraproject:fedora:31:::::::*

No data.

References

Link	Providers
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.html
https://github.com/upx/upx/issues/315
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7XU42G6MUQQXHWRP7DCF2JSIBOJ5GOO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUTVSTXAFTD552NO2K2RIF6MDQEHP3BE/

History

Fri, 11 Apr 2025 12:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Upx Upx upx
CPEs	cpe:2.3:a:upx_project:upx:3.95:::::::*	cpe:2.3:a:upx:upx:3.95:::::::*
Vendors & Products	Upx Project Upx Project upx	Upx Upx upx

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-12-27T01:11:17

Updated: 2024-08-05T02:32:10.477Z

Reserved: 2019-12-27T00:00:00

Link: CVE-2019-20021

Vulnrichment

No data.

NVD

Status : Modified

Published: 2019-12-27T02:15:10.797

Modified: 2025-04-11T12:27:55.013

Link: CVE-2019-20021

Redhat

No data.

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