The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cau
The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.
- DLA-516-1
- DSA-3607-1
- RHSA-2016:2124
- RHSA-2016:2766
- RHSA-2017:2760
- SUSE-SU-2016:1596-1
- SUSE-SU-2016:1672-1
- SUSE-SU-2016:1696-1
- SUSE-SU-2016:1937-1
- SUSE-SU-2016:1961-1
- SUSE-SU-2016:1985-1
- SUSE-SU-2016:1994-1
- SUSE-SU-2016:1995-1
- SUSE-SU-2016:2000-1
- SUSE-SU-2016:2002-1
- SUSE-SU-2016:2005-1
- SUSE-SU-2016:2006-1
- SUSE-SU-2016:2007-1
- SUSE-SU-2016:2009-1
- SUSE-SU-2016:2010-1
- Published
- Jun 27, 2016
- Updated
- Jun 16, 2026
- EPSS
- 1.4% · 71th percentile
- CWE
- CWE-119
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| novell | suse linux enterprise software development kit | cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit |
| novell | suse linux enterprise debuginfo | cpe:2.3:o:novell:suse_linux_enterprise_debuginfo |
| novell | suse linux enterprise desktop | cpe:2.3:o:novell:suse_linux_enterprise_desktop |
| novell | suse linux enterprise live patching | cpe:2.3:o:novell:suse_linux_enterprise_live_patching |
| novell | suse linux enterprise module for public cloud | cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud |
| novell | suse linux enterprise server | cpe:2.3:o:novell:suse_linux_enterprise_server |
| novell | suse linux enterprise workstation extension | cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux12.04
- canonical ubuntu linux14.04
- canonical ubuntu linux15.10
- canonical ubuntu linux16.04
- debian debian linux8.0
- linux linux kernel2.6.19 and later · before 3.18.54
- linux linux kernel3.19 and later · before 4.4.14
- linux linux kernel4.5 and later · before 4.6.3
- novell suse linux enterprise debuginfo11.0
- novell suse linux enterprise desktop12.0
- novell suse linux enterprise live patching12.0
- novell suse linux enterprise module for public cloud12
- novell suse linux enterprise server11.0
- novell suse linux enterprise server12.0
- novell suse linux enterprise software development kit11.0
- novell suse linux enterprise software development kit12.0
- novell suse linux enterprise workstation extension12.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 4.6.2-1 | 4.6.2-1 |
| Debian:7 | linux | before 3.2.81-1 | 3.2.81-1 |
| Debian:8 | linux | before 3.16.7-ckt25-2+deb8u2 | 3.16.7-ckt25-2+deb8u2 |
| Red Hat:enterprise_linux:5::client | kernel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug-debuginfo | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug-devel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debuginfo | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debuginfo-common | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-devel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-doc | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-headers | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE-debuginfo | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE-devel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen-debuginfo | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen-devel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump-debuginfo | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump-devel | before 0:2.6.18-416.el5 | 0:2.6.18-416.el5 |
| Red Hat:enterprise_linux:6::client | kernel | before 0:2.6.32-642.11.1.el6 | 0:2.6.32-642.11.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-abi-whitelists | before 0:2.6.32-642.11.1.el6 | 0:2.6.32-642.11.1.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug | before 0:2.6.32-642.11.1.el6 | 0:2.6.32-642.11.1.el6 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
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- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
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:linux | 4.6.2-1 · Debian:12 | Package registry (OSV) |
| red hat:kernel | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-devel | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-doc | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-headers | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE-debuginfo | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE-devel | 0:2.6.18-416.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| suse:kernel-default | 3.12.55-52.45.1 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:kernel-docs | 3.12.55-52.45.4 · SUSE:Linux Enterprise Software Development Kit 12 | Package registry (OSV) |
| suse:kernel-ec2 | 3.12.55-52.45.1 · SUSE:Linux Enterprise Module for Public Cloud 12 | Package registry (OSV) |
| suse:kernel-obs-build | 3.12.55-52.45.1 · SUSE:Linux Enterprise Software Development Kit 12 | Package registry (OSV) |
| suse:kernel-pae | 3.0.101-77.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-ppc64 | 3.0.101-77.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-source | 3.12.55-52.45.1 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:kernel-syms | 3.12.55-52.45.1 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:kernel-trace | 3.0.101-77.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-xen | 3.12.55-52.45.1 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:kgraft-patch-SLE12_Update_13 | 1-3.1 · SUSE:Linux Enterprise Live Patching 12 | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP1_Update_5 | 1-2.1 · SUSE:Linux Enterprise Live Patching 12 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2016-06-21 |
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.
- First PoC-6 d
- Published
- TodaySep 30, 2026+3747 d
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
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
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✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f36db71009304b3f0b95afacd8eba1f9f046b87
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00027.html
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.