Upstream information

CVE-2021-20285 at MITRE

Description

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 8.3
Vector AV:N/AC:M/Au:N/C:P/I:P/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Complete
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 6.6
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1183510 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP4
  • upx >= 4.0.2-bp154.4.6.1
 Patchnames:
openSUSE-2023-88
openSUSE Leap 15.4
  • upx >= 4.0.2-bp154.4.6.1
 Patchnames:
openSUSE-2023-88

SUSE Timeline for this CVE

CVE page created: Mon Mar 15 09:44:44 2021
CVE page last modified: Mon Oct 6 19:29:07 2025