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CVE-2021-30501

Date: May 26, 2021

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.

Language: C

Severity Score

5.5

Related Resources (9)

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-30501

Url: https://github.com/upx/upx/pull/487

Url: https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46

Url: https://security-tracker.debian.org/tracker/CVE-2021-30501

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1948696

Url: https://security.archlinux.org/CVE-2021-30501

Url: https://github.com/upx/upx/issues/486

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-30501

Url: https://www.mend.io/vulnerability-database/CVE-2021-30501

Severity Score

5.5

Weakness Type (CWE)

Improper Input Validation

CWE-20

Reachable Assertion

CWE-617

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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