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CVE-2020-27801

Date: August 25, 2022

A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.

Language: C

Severity Score

Related Resources (4)

https://github.com/upx/upx/issues/394
https://nvd.nist.gov/vuln/detail/CVE-2020-27801
https://security-tracker.debian.org/tracker/CVE-2020-27801
https://www.mend.io/vulnerability-database/CVE-2020-27801

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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