CVE catalog

CVE-2023-23457

DEBIAN-CVE-2023-23457

Severity: Unknown · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Jan 1, 2023, 12:00:00 AM UTC
Updated: Oct 21, 2026, 6:01:33 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.36% · Oct 25, 2026

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() 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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	upx-ucl	13	`4.2.2-1`	fixed
Debian	upx-ucl	14	`4.2.2-1`	fixed
Suse	upx	package hub 15 sp4	`4.0.1-bp154.4.3.1`	fixed
Opensuse	upx	leap 15.4	`4.0.1-bp154.4.3.1`	fixed
Opensuse	upx	tumbleweed	`4.0.1-2.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	upx-ucl	deb	13	`4.2.2-1`	Not reported	DEBIAN-CVE-2023-23457	Not reported
Debian	upx-ucl	deb	14	`4.2.2-1`	Not reported	DEBIAN-CVE-2023-23457	Not reported
Suse	upx	rpm	package hub 15 sp4	`4.0.1-bp154.4.3.1`	Not reported	OPENSUSE-SU-2023:0031-1	Not reported
Opensuse	upx	rpm	leap 15.4	`4.0.1-bp154.4.3.1`	Not reported	OPENSUSE-SU-2023:0031-1	Not reported
Opensuse	upx	rpm	tumbleweed	`4.0.1-2.1`	Not reported	OPENSUSE-SU-2024:12613-1	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]