SELinux policycoreutils allows local users to execute arbitrary commands outside of the sandbox via a crafted TIOCSTI ioctl call.
- Published
- Jan 19, 2017
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 30th percentile
- CWE
- CWE-284
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| selinux project | selinux | cpe:2.3:a:selinux_project:selinux |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux hpc node | cpe:2.3:o:redhat:enterprise_linux_hpc_node |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora25
- redhat enterprise linux desktop6.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux hpc node6.0
- redhat enterprise linux hpc node7.0
- redhat enterprise linux server6.0
- redhat enterprise linux server7.0
- redhat enterprise linux server tus7.3
- redhat enterprise linux workstation6.0
- redhat enterprise linux workstation7.0
- selinux project selinuxall versions
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | policycoreutils | before 2.5-3 | 2.5-3 |
| Debian:7 | policycoreutils | before 2.1.10-9+deb7u1 | 2.1.10-9+deb7u1 |
| openSUSE:Tumbleweed | coreutils | before 3.2-1.4 | 3.2-1.4 |
| openSUSE:Tumbleweed | firejail | before 0.9.66-1.2 | 0.9.66-1.2 |
| Red Hat:enterprise_linux:6::client | policycoreutils | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:6::client | policycoreutils-debuginfo | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:6::client | policycoreutils-gui | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:6::client | policycoreutils-newrole | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:6::client | policycoreutils-python | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:6::client | policycoreutils-sandbox | before 0:2.0.83-30.1.el6_8 | 0:2.0.83-30.1.el6_8 |
| Red Hat:enterprise_linux:7::client | policycoreutils | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-debuginfo | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-devel | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-gui | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-newrole | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-python | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-restorecond | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:enterprise_linux:7::client | policycoreutils-sandbox | before 0:2.5-9.el7 | 0:2.5-9.el7 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils-debuginfo | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils-devel | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils-gui | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils-newrole | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
| Red Hat:rhel_eus:7.1::computenode | policycoreutils-python | before 0:2.2.5-16.el7_1 | 0:2.2.5-16.el7_1 |
+21
Same product
selinux project: all recordsOther highest-scoring records for the same primary product.
- CVE-2015-3170selinux-policy when sysctl fs.protected_hardlinks are set to 0 allows local users to cause a denial of service (SSH login prevention) by cre22Monitor
- CVE-2021-36087The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow).13Monitor
- CVE-2021-36085The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classperms and hashtab_map).13Monitor
- CVE-2021-36084The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermission and __cil_pre_veri13Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:policycoreutils | 2.5-3 · Debian:12 | Package registry (OSV) |
| opensuse:coreutils | 3.2-1.4 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:firejail | 0.9.66-1.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:policycoreutils | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:policycoreutils-debuginfo | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:policycoreutils-devel | 0:2.5-9.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:policycoreutils-gui | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:policycoreutils-newrole | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:policycoreutils-python | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:policycoreutils-restorecond | 0:2.5-9.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:policycoreutils-sandbox | 0:2.0.83-30.1.el6_8 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| suse:policycoreutils | 2.5-6.1 · SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-284 · Improper Access ControlCVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Embedding Scripts within ScriptsCAPEC-19likelihood: High · High
- Malicious Logic InsertionCAPEC-441likelihood: Medium · High
- Modification of Windows Service ConfigurationCAPEC-478likelihood: Low · High
- Malicious Root CertificateCAPEC-479likelihood: Low · Low
- Intent SpoofCAPEC-502
- WebView ExposureCAPEC-503
- Data Injected During ConfigurationCAPEC-536likelihood: Low · High
- Incomplete Data Deletion in a Multi-Tenant EnvironmentCAPEC-546likelihood: Low · Medium
ATT&CK techniques
- RootkitT1014
- Obfuscated Files or Information: Embedded PayloadsT1027.009
- Boot or Logon Initialization ScriptsT1037
- Taint shared contentT1080
- Server Software Component: Terminal Services DLLT1505.005
- Pre-OS Boot:BootkitT1542.003
- Create or Modify System ProcessT1543
- Create or Modify System Process: Launch AgentT1543.001
- Create or Modify System Process:Windows ServiceT1543.003
- Create or Modify System Process: Launch DaemonT1543.004
- Event Triggered Execution:Change Default File AssociationT1546.001
- Event Triggered Execution:.bash_profile and .bashrcT1546.004
- Event Triggered Execution: Accessibility FeaturesT1546.008
- Event Triggered Execution: Installer PackagesT1546.016
- Boot or Logon Autostart ExecutionT1547
- Boot or Logon Autostart Execution:Kernel Modules and ExtensionsT1547.006
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- rhn.redhat.com/errata/RHSA-2016-2702.html
- rhn.redhat.com/errata/RHSA-2017-0535.html
- rhn.redhat.com/errata/RHSA-2017-0536.html
- www.openwall.com/lists/oss-security/2016/09/25/1
- www.securityfocus.com/bid/93156
- www.securitytracker.com/id/1037283
- github.com/SELinuxProject/selinux/commit/acca96a135a4d2a028ba9b636886af99c0915379
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPRNK3PWMAVNJZ53YW5GOEOGJSFNAQIF/
- marc.info/?l=selinux&m=147465160112766&w=2
Vendor advisories and official records. Exploit/PoC links are deliberately left out.