CVE-2021-30501
MEDIUM
5.5
CVSS Score
Published: May 26, 2021 at 11:54 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
3 products affected across 3 vendorsFedoraEnterprise LinuxUpx
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Severity
MEDIUM5.5
Exploit prediction
EPSS 1%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1948696x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/issues/486x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://github.com/upx/upx/pull/487CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20CWE-617
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