CVE-2021-30501 Information

Description

An assertion abort was found in upx MemBuffer::alloc() in mem.cpp in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1948696 https://github.com/upx/upx/issues/486 https://github.com/upx/upx/pull/487 https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5