PT-2023-18964 · Upx · Upx

Cwjop + 1 · Published 2023-01-12 · Updated 2026-02-26 · CVE-2023-23456

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions UPX (affected versions not specified)

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

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2023-23456

DLA-3991-1

MGASA-2023-0052

OPENSUSE-SU-2023:0088-1

ROSA-SA-2023-2260

ROSA-SA-2024-2414

Affected Products

Upx

References · 51

• 🔥 https://github.com/upx/upx/issues/632 · Exploit
• https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4 · Patch
• https://cve.org/CVERecord?id=CVE-2023-23456 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-23456 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-23456 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-23456 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0052 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3991-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-23456 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2023:0088-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI · Vendor Advisory
• https://advisories.mageia.org/MGASA-2023-0052.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-23456 · Vendor Advisory