CVE catalog
CVE-2019-20053
UBUNTU-CVE-2019-20053
- Severity
- Medium · CVSS 6.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.23% · Oct 25, 2026
An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.
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 | 3.96-1 | fixed |
| Debian | upx-ucl | 14 | 3.96-1 | fixed |
| Ubuntu | upx-ucl | 16.04 | 3.91-1 | vulnerable |
| Ubuntu | upx-ucl | 18.04 | 3.94-2 | vulnerable |
| Ubuntu | upx-ucl | 18.04 | 3.94-3 | vulnerable |
| Ubuntu | upx-ucl | 18.04 | 3.94-4 | vulnerable |
| Ubuntu | upx-ucl | 20.04 | 3.95-2 | vulnerable |
| Ubuntu | upx-ucl | 20.04 | 3.95-2build1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | upx-ucl | deb | 13 | 3.96-1 | Not reported | DEBIAN-CVE-2019-20053 | Not reported |
| Debian | upx-ucl | deb | 14 | 3.96-1 | Not reported | DEBIAN-CVE-2019-20053 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [upx-ucl]Fixed
Details (2)
4.2.4-1.1· amd64 · trixieFixed · Fixed:
3.96-1pypi · upx-ucl · debian · 13
4.2.4-1.1· arm64 · trixieFixed · Fixed:
3.96-1pypi · upx-ucl · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2020_0163-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-20053]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-20053]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-20053.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]