CVE-2021-20285

CVSS V2 High 8.3 CVSS V3 Medium 6.6
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.
Overview
  • CVE ID
  • CVE-2021-20285
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-26T17:15:13
  • Last Modified Date
  • 2022-08-05T17:44:38
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:upx_project:upx:3.96:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • COMPLETE
  • Base Score
  • 8.3
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 8.5
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • HIGH
  • Base Score
  • 6.6
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 4.7
References
Reference URL Reference Tags
https://github.com/upx/upx/issues/421 Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1937787 Issue Tracking Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20285
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20285
History
Created Old Value New Value Data Type Notes
2022-05-10 07:18:20 Added to TrackCVE
2022-12-06 00:31:25 2021-03-26T17:15Z 2021-03-26T17:15:13 CVE Published Date updated
2022-12-06 00:31:25 2022-08-05T17:44:38 CVE Modified Date updated
2022-12-06 00:31:25 Analyzed Vulnerability Status updated