Apport
CVE-2016-9950
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.73%. |
| Exploit ScenarioDerived | A local attacker with access to the system could access files and directories outside the intended path. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
An issue was discovered in Apport before 2.20.4. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package specific hook files in the /usr/share/apport/package-hooks/ directory. An attacker can exploit this path traversal to execute arbitrary Python files from the local system. Affected products include: Apport Project Apport, Canonical Ubuntu Linux. Version information: before 2.20.4..
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
An issue was discovered in Apport before 2.20.4. There is a path traversal issue in the Apport crash file "Package" and "SourcePackage" fields. These fields are used to build a path to the package specific hook files in the /usr/share/apport/package-hooks/ directory. An attacker can exploit this path traversal to execute arbitrary Python files from the local system.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Exploit-DB
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Affected Products (CPE)CVE.org
The crash reporting feature in Apport 2.13 through 2.17.x before 2.17.1 allows local users to gain privileges via a craf
An issue was discovered in Apport before 2.20.4. Rated high severity (CVSS 7.8), this vulnerability is no authentication
An issue was discovered in Apport before 2.20.4. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploi
It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO. Rat
It was discovered that the get_starttime() function in data/apport did not properly parse the /proc/pid/stat file from t
It was discovered that the get_pid_info() function in data/apport did not properly parse the /proc/pid/status file from
kernel_crashdump in Apport before 2.19 allows local users to cause a denial of service (disk consumption) or possibly ga
It was discovered that the process_report() function in data/whoopsie-upload-all allowed arbitrary file writes via symli
Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubu
An information disclosure via path traversal was discovered in apport/hookutils.py function read_file(). Rated medium se
Function check_attachment_for_errors() in file data/general-hooks/ubuntu.py could be tricked into exposing private data
An unhandled exception in check_ignored() in apport/report.py can be exploited by a local attacker to cause a denial of