CVE-2023-23456

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2160381	Issue Tracking Third Party Advisory
https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4	Patch Third Party Advisory
https://github.com/upx/upx/issues/632	Exploit Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/
https://bugzilla.redhat.com/show_bug.cgi?id=2160381	Issue Tracking Third Party Advisory
https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4	Patch Third Party Advisory
https://github.com/upx/upx/issues/632	Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/12/msg00013.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:36:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

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::::::::

12 Dec 2024, 01:15

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2024/12/msg00013.html -

Information

Published : 2023-01-12 19:15

Updated : 2025-04-11 12:27

NVD link : CVE-2023-23456

Mitre link : CVE-2023-23456

CVE.ORG link : CVE-2023-23456

JSON object : View

Products Affected

fedoraproject

fedora

upx

upx

CWE

CWE-787

Out-of-bounds Write

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