PT-2022-8870

CVE-2020-27796

Published

2020-10-02

Updated

2026-10-31

Description by

CVSS 3.1

7.8

High

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

Name of the Vulnerable Software and Affected Versions UPX version 4.0.0

Description A heap-based buffer over-read was discovered in the invert pt dynamic function in p lx elf.cpp via a crafted Mach-O file.

Recommendations For UPX version 4.0.0, as a temporary workaround, consider disabling the invert pt dynamic function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploitability

Exploit

Impacts

Researchers

Giantbranch

Vendors

Affected products

Weakness enumeration

CWE-125: Out-of-bounds Read

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Related identifiers

CVE-2020-27796