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CVE-2020-27800

Published: 25 August 2022

A heap-based buffer over-read was discovered in the get_le32 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
upx-ucl
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Needed

jammy Needed

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H