CVE-2021-25684
apport can be stalled by reading a FIFO
HIGH
7.8
CVSS Score
Published: June 11, 2021 at 02:20 AM UTC
Updated: June 17, 2026 at 03:42 AM UTC
1 product affected across 1 vendorApport
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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%
Description
It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
2.20.1 ≤ v < 2.20.1-0ubuntu2.302.20.1-0ubuntu1 ≤ v < 2.20.1-0ubuntu2.302.20.11-0ubuntu27 ≤ v < 2.20.11-0ubuntu27.162.20.11-0ubuntu50 ≤ v < 2.20.11-0ubuntu50.52.20.9 ≤ v < 2.20.9-0ubuntu7.232.20.9-0ubuntu1 ≤ v < 2.20.9-0ubuntu7.232.20.12.20.11-0ubuntu272.20.11-0ubuntu502.20.9
Affected range stops below 2.20.1-0ubuntu2.30, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.20.11-0ubuntu27.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.20.11-0ubuntu50.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.20.9-0ubuntu7.23, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1912326Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2025/Jun/9CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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