CVE-2021-30500

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-30500
Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1948692 Issue Tracking Third Party Advisory
https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc Patch Third Party Advisory
https://github.com/upx/upx/issues/485 Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1948692 Issue Tracking Third Party Advisory
https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc Patch Third Party Advisory
https://github.com/upx/upx/issues/485 Exploit Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:upx:upx:4.0.0:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
History

11 Apr 2025, 12:27

Type Values Removed Values Added
CPE cpe:2.3:a:upx_project:upx:4.0.0:*:*:*:*:*:*:* cpe:2.3:a:upx:upx:4.0.0:*:*:*:*:*:*:*
First Time Upx upx
Upx

21 Nov 2024, 06:04

Type Values Removed Values Added
References () https://bugzilla.redhat.com/show_bug.cgi?id=1948692 - Issue Tracking, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=1948692 - Issue Tracking, Third Party Advisory
References () https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc - Patch, Third Party Advisory () https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc - Patch, Third Party Advisory
References () https://github.com/upx/upx/issues/485 - Exploit, Issue Tracking, Third Party Advisory () https://github.com/upx/upx/issues/485 - Exploit, Issue Tracking, Third Party Advisory

08 Jun 2021, 02:05

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 6.8
v3 : 7.8
CPE cpe:2.3:a:upx_project:upx:4.0.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
References (MISC) https://github.com/upx/upx/issues/485 - (MISC) https://github.com/upx/upx/issues/485 - Exploit, Issue Tracking, Third Party Advisory
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1948692 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1948692 - Issue Tracking, Third Party Advisory
References (MISC) https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc - (MISC) https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc - Patch, Third Party Advisory

27 May 2021, 02:11

Type Values Removed Values Added
CWE CWE-476

27 May 2021, 00:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-27 00:15

Updated : 2025-04-11 12:27

NVD link : CVE-2021-30500

Mitre link : CVE-2021-30500

CVE.ORG link : CVE-2021-30500

JSON object : View

Products Affected

upx

  • upx

fedoraproject

  • fedora

redhat

  • enterprise_linux
CWE
CWE-476

NULL Pointer Dereference