CVE-2023-23456
MEDIUM5.5EPSS 0.03%upx-ucl - security update
Published: 1/12/2023Modified: 4/28/2026
Description
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.
Affected packages (2)
- Debian/upx-uclfrom 0, < 3.96-2+deb11u1
- Debian/upx-uclfrom 0, < 3.96-2+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |