Vulnerability Report

CVE-2021-25684

Title: Canonical Apport Improper Input Validation

Improper Input Validation

Proof Of Concept

No public PoC currently indexed for CVE-2021-25684.

CWE Category CWE-20
Published Date Jun 11, 2021
Modified Date Nov 03, 2025
Exploit Status Not Found
Score 8.8 CVSS v3.1
Exploit Probability (EPSS)
0.57%

Vulnerability Summary

CVE-2021-25684: It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.

Impacted Vendors

C
canonical 1
A
apport 1

Reference Links

https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326 http://seclists.org/fulldisclosure/2025/Jun/9 https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-25684 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Stack

No specific products linked.