vulnerability
Arch Linux: Denial of service (CVE-2021-30501)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | May 26, 2021 | Jul 11, 2025 | Jun 12, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
May 26, 2021
Added
Jul 11, 2025
Modified
Jun 12, 2026
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.
Solution
arch-linux-upgrade-latest
References
- CVE-2021-30501
- https://attackerkb.com/topics/CVE-2021-30501
- https://bugzilla.redhat.com/show_bug.cgi?id=1948696
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-17422
- https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46
- https://github.com/upx/upx/issues/486
- https://github.com/upx/upx/pull/487
- CWE-20
- CWE-617
- EUVD-EUVD-2021-17422
Rapid7 Labs
2026 Global Threat Landscape Report
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