CVE-2011-3151
SELinux initscript misuse of touch
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
SELinux initscript misuse of touch
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
- Record
CVE-2011-3151- CVSS 3.0
- 5.2 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-02
EUVDEUVD-2011-3118
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
- Record
EUVD-2011-3118- CVSS 3.0
- 5.2 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3wp7-vqr4-g72h
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world...
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
- Record
GHSA-3wp7-vqr4-g72h- CVSS 3.0
- 5.9 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-693
- Updated
- 2026-11-02
NVD
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
- Record
CVE-2011-3151- CVSS 3.0
- 5.2 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - CVSS 3.0
- 5.9 Medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:P - Weakness
- CWE-693
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-3151 is a medium vulnerability (CVSS 5.2) in Canonical Selinux, published April 22, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.