Home/CVE/An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to ca
CVE

CVE-2021-30501

An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to ca

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.

MEDIUM · CVSS 5.5 EPSS 0.00204
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-617Reachable Assertion
▤

Affected Products & Versions

3
upxall versions
redhat enterprise linuxall versions
fedoraproject fedoraall versions
⚠

Public Exploits & PoCs

2
pocgithub.com · issues/486github.com
pocgithub.com · pull/487github.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 May 2021 · 12:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
suse-csafopenSUSE-SU-2023:0088-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1948696Issue TrackingPatchThird Party Advisory
https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46PatchThird Party Advisory
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